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Tunable Lasers and Transceivers         

XMD Based Tunable DML Laser Transmitter Optical Sub-Assembly

XMD Based Tunable EML Laser Transmitter Optical Sub-Assembly

TO-CAN Based Tunable Laser Optical Sub-Assembly

Tunable Laser TO-CAN

Tunable Laser Bidirectional Optical Sub-Assembly

Tunable SFP Transceiver

Wavelength Swept Laser

XMD Based Tunable DML Laser Transmitter Optical Sub-Assembly                                                   To Top

TOSA TLDXD Series

 

Key Features

·         Up to 40 channels at 100 GHz spacing

or up to 80 channels at 50GHz spacing

·         C- or L-band

·         Simple tuning algorithm

·         2.5-10 Gbps direct modulation

·         Small package size

 

Applications

 

·             WDM-PON

·             Colorless ONU

·             Optical interconnects

·             DWDM sparing

·             Dynamic wavelength provisioning

·             Wavelength routing

 

 

Widely wavelength tunable semiconductor lasers are key components for next-generation optical networks. Conventional tunable lasers require complex fabrication processes such as non-uniform gratings and multiple epitaxial growths, and need multiple electrodes with complex control algorithms for wavelength tuning. As the dense wavelength division multiplexing (DWDM) technology extends towards access and data center networks, the cost reduction and operational simplicity have become more and more important.

Lightip has developed a simple and compact tunable laser based on patented proprietary technologies. It consists of a half-wave coupled V-cavity laser with only three electrodes: one for gain and direct modulation, one for channel selection corresponding to the ITU grid, and the third for fine tuning when needed. The laser structure does not involve any grating or epitaxial regrowth, and has a size of only about 400mm x 300mm. The advantages of compactness, fabrication simplicity and easy wavelength control offer cost-effective tunable laser solutions for many applications in access and data center networks, and beyond.

The TLDXD series Transmitter Optical Sub-Assembly (TOSA) integrates a V-cavity edge-emitting tunable laser, a power monitoring photodiode, an isolator, and a TEC controller. The connector type can be chosen from LC, SC or fiber-pigtail with FC/PC or FC/APC connector. It can provide up to 40 channels at 100GHz spacing or 80 channels at 50GHz spacing in C- or L- band (other wavelength bands available on request). The size of the 9-pin TOSA is only a small fraction of that of the conventional butterfly package for tunable lasers.

Specifications

Parameters

Min.

Typ.

Max.

Unit

Optical Output Power

0

3

 

dBm

LD Operating Temperature

10

35

65

℃

Ambient Operating Temperature

0

-

70

℃

Gain Forward Bias Current

25

30

100

mA

Channel Selector Current

20

-

140

mA

Fine Tuning Current

20

25

50

mA

LD Forward Bias Voltage

-

-

2.3

V

Modulation Data Rate

2.5 – 10 

Gbps

Wavelength

C- or L-band (other wavelengths available on request)

 

Channel Spacing

50 or 100

GHz

Number of Channels

16, 32, 40 @100GHz, or 32, 64, 80@50GHz

 

Side Mode Suppression Ratio

35

38

-

dB

Optical Isolation

25

-

-

dB

Relative Intensity Noise

-

-

-135

dB/Hz

Power Monitor Current

20

-

500

μA

Power Monitor Dark Current

-

-

100

nA

TEC Current

-

0.7

1

A

TEC Voltage

-

2.2

3

V

Total Power Consumption

(PLD + PTEC)

-

2

3

W

Thermistor B constant

-

4050

-

K

Thermistor Resistance @25°C

9.5

10

10.5

kΩ

* Product specifications are subject to change without notice.

 Dimensions                                                        Pin Assignments

(in millimeters)

 

Pin

Symbol

Description

1

TEC+

TEC anode

2

TEC-

TEC cathode

3

GND

Ground

4

LD1

Gain bias and modulation signal

5

GND

Ground

6

PD-

Monitoring PD

7

LD2

Channel selector

8

LD3

Fine tuning

9

RTh

Thermistor

 

Download PDF file

XMD Based Tunable EML Laser Transmitter Optical Sub-Assembly                                                   To Top

TOSA TLDXE Series

 

Key Features

·         Up to 40 channels at 100 GHz spacing

or up to 80 channels at 50GHz spacing

·        O-band or C-band

·         Tunable EML chip

·         Simple tuning algorithm

·         10 - 25 Gbps EA modulation

·         Small package size

Applications

 

·             WDM-PON

·             Colorless ONU

·             Intelligent optical interconnects

·             DWDM sparing

·             Dynamic wavelength provisioning

·             Wavelength routing

 

 

Widely wavelength tunable semiconductor lasers are key components for next-generation optical networks. Conventional tunable lasers require complex fabrication processes such as non-uniform gratings and multiple epitaxial growths, and need multiple electrodes with complex control algorithms for wavelength tuning. As the dense wavelength division multiplexing (DWDM) technology extends towards access and data center networks, the cost reduction and operational simplicity have become more and more important.

Lightip has developed a simple and compact tunable laser based on patented proprietary technologies. It consists of a half-wave coupled V-cavity laser. The laser structure does not involve any grating or epitaxial regrowth, and has a much smaller size compared to conventional tunable lasers. The advantages of compactness, fabrication simplicity and easy wavelength control offer cost-effective tunable laser solutions for many applications in metro/access networks, datacenters and beyond.

The TLDXE series Transmitter Optical Sub-Assembly (TOSA) integrates a V-cavity edge-emitting tunable EML laser, an isolator, and a TEC controller. The connector type can be chosen from LC, SC or fiber-pigtail with FC/PC or FC/APC connector. It can provide up to 40 channels at 100GHz spacing or 80 channels at 50GHz spacing in C- or O- band (other wavelength bands available on request). Currently the tunable EML is available for 10Gbps and 25Gbps data rates.

Specifications

Parameters

Min.

Typ.

Max.

Unit

Optical Output Power

 

-3(C-band)

0(O-band)

 

dBm

LD Operating Temperature

10

35

65

℃

Ambient Operating Temperature

0

-

70

℃

Gain Forward Bias Current

25

30

100

mA

Channel Selector Current

20

-

140

mA

Fine Tuning Current

20

25

50

mA

LD Forward Bias Voltage

-

-

2.3

V

Modulation Data Rate

10 – 25

Gbps

Wavelength

C- or O-band (other wavelengths available on request)

 

Channel Spacing

50 or 100

GHz

Number of Channels

16, 32, 40 @100GHz, or 32, 64, 80@50GHz

 

Side Mode Suppression Ratio

35

38 - 40

-

dB

Optical Isolation

25

-

-

dB

Relative Intensity Noise

-

-

-135

dB/Hz

Power Monitor Current

-

-

-

-

Power Monitor Dark Current

-

-

-

-

TEC Current

-

0.7

1

A

TEC Voltage

-

2.2

3

V

Total Power Consumption

(PLD + PTEC)

 

-

 

2

 

3

 

W

Thermistor B constant

-

4050

-

K

Thermistor Resistance @25°C

9.5

10

10.5

kΩ

* Product specifications are subject to change without notice.

 Dimensions                                                        Pin Assignments

(in millimeters)

 

Pin

Symbol

Description

1

TEC+

TEC anode

2

TEC-

TEC cathode

3

GND

Ground

4

EA

Modulation signal

5

GND

Ground

6

LD1

Gain bias

7

LD2

Channel selector

8

LD3

Fine tuning

9

RTh

Thermistor

 

Download PDF file

TO-CAN Based Tunable Laser Optical Sub-Assembly                                              To Top

TOSA TLCX15 Series

Key Features

·         Up to 16 channels at 100 GHz spacing

or up to 32 channels at 50GHz spacing

·         C- or L-band

·         Simple tuning algorithm

·         2.5 -10 Gbps direct modulation

·         Low-cost TO-can based optical subassembly

Applications

 

·         NGPON2

·         WDM-PON

·         Optical interconnects

·         DWDM sparing

 

The TLCX15 series Transmitter Optical Sub-Assembly (TOSA) is based on an 8-pin TO-CAN package that offers further cost reduction compared to our previously released TLDX15 series tunable TOSA. It comprises a V-cavity edge-emitting tunable laser, a power monitoring photodiode, an isolator, and a TEC controller, with an LC connector. Currently it can provide up to 16 channels at 100 GHz spacing or 32 channels at 50 GHz spacing in C- or L- band (other wavelength bands available on request), with a customer specified starting wavelength. The laser chip can be operated in semi-cooled condition at 40-60℃ while the ambient operating temperature is between 0 and 70℃.

 Specifications

Parameters

Min.

Typ.

Max.

Unit

Optical Output Power

³ 0

dBm

Ambient Operating Temperature

0

-

70

℃

Gain Forward Bias Current

25

30

50

mA

Channel Selector Current

20

-

100

mA

Fine Tuning Current

20

25

40

mA

LD Forward Bias Voltage

-

-

2.3

V

Modulation Data Rate

2.5  - 10

Gbps

Wavelength

C- or L-band (other wavelengths available on request)

 

Channel Spacing

50 or 100

GHz

Number of Channels

Up to 16@100GHz, or 32@50GHz

 

Side Mode Suppression Ratio

35

               38

-

dB

Optical Isolation

25

-

-

dB

Relative Intensity Noise

-

-

-135

dB/Hz

Power Monitor Current

20

-

500

μA

Power Monitor Dark Current

-

-

100

nA

TEC Current

-

0.5

0.9

A

TEC Voltage

-

-

1.2

V

Total Power Consumption

(PLD + PTEC)

-

0.8

1.5

W

Thermistor B constant

-

4050

-

K

Thermistor Resistance @25°C

9.5

10

10.5

kΩ

* Product specifications are subject to change without notice.

 Dimensions                                                        Pin Assignments

(in millimeters)

 

Pin

Symbol

Description

1

TEC-

TEC cathode

2

COMMON

LD3-/LD1-/PD+/LD2-/Rth

3

LD3+

Fine tuning

4

LD1+

Gain bias and modulation signal

5

PD-

PD cathode

6

LD2+

Channel selector

7

    Rth

Thermistor

8

TEC+

TEC anode

 

 

 

 

 

 

 

 

 

 

Download PDF file

Tunable Laser TO-CAN                                                                                            To Top

TLTX15 Series

Key Features

·         Up to 16 channels at 100 GHz spacing

or up to 32 channels at 50GHz spacing

·         C- or L-band

·         Simple tuning algorithm

·         2.5 -10 Gbps direct modulation

·         Low-cost TO-can package

Applications

 

·         NGPON2

·         WDM-PON

·         Optical interconnects

·         DWDM sparing

 

The TLTX15 series is an 8-pin TO-CAN package that offers the lowest cost tunable laser. It comprises a V-cavity edge-emitting tunable laser, a power monitoring photodiode, and a TEC controller. It can come with a cap lens or flat window. Currently it can provide up to 16 channels at 100GHz spacing or 32 channels at 50GHz spacing in C- or L- band (other wavelength bands available on request), with a customer specified starting wavelength. The laser chip can be operated in semi-cooled condition at 40-60℃ while the ambient operating temperature is between 0 and 70℃.

 

Specifications

Parameters

Min.

Typ.

Max.

Unit

Optical Output Power

³ 6

dBm

Ambient Operating Temperature

0

-

70

℃

Gain Forward Bias Current

25

30

50

mA

Channel Selector Current

20

-

100

mA

Fine Tuning Current

20

25

40

mA

LD Forward Bias Voltage

-

-

2.3

V

Modulation Data Rate

2.5  - 10

Gbps

Wavelength

C- or L-band (other wavelengths available on request)

 

Channel Spacing

50 or 100

GHz

Number of Channels

Up to 16@100GHz, or 32@50GHz

 

Side Mode Suppression Ratio

35

                38

-

dB

Optical Isolation

25

-

-

dB

Relative Intensity Noise

-

-

-135

dB/Hz

Power Monitor Current

20

-

500

μA

Power Monitor Dark Current

-

-

100

nA

TEC Current

-

0.5

0.9

A

TEC Voltage

-

-

1.2

V

Total Power Consumption

(PLD + PTEC)

-

0.8

1.5

W

Thermistor B constant

-

4050

-

K

Thermistor Resistance @25°C

9.5

10

10.5

kΩ

* Product specifications are subject to change without notice.

 

Dimensions                                                        Pin Assignments

(in millimeters)

 

Pin

Symbol

Description

1

TEC-

TEC cathode

2

COMMON

LD3-/LD1-/PD+/LD2-/Rth

3

LD3+

Fine tuning

4

LD1+

Gain bias and modulation signal

5

PD-

PD cathode

6

LD2+

Channel selector

7

    Rth

Thermistor

8

TEC+

TEC anode

 

 

 

 

 

 

 

 

 

 

Download PDF file

Tunable Laser Bidirectional Optical Sub-Assembly                                                 To Top

BOSA TLBX15 Series

Key Features

·         Up to 16 channels at 100 GHz spacing

or up to 32 channels at 50GHz spacing

·         C- or L-band

·         Simple tuning algorithm

·         2.5 - 10 Gbps direct modulation

·         Bidirectional optical subassembly with LC connector or fiber pigtail

Applications

 

·         NGPON2

·         WDM-PON

 

The TLBX15 series Bidirectional Optical Sub-Assembly (TOSA) is based on an 8-pin TO-CAN tunable laser, co-packaged with a PIN photodiode. The transmitter comprises a V-cavity edge-emitting tunable laser, a power monitoring photodiode, an isolator, and a TEC controller. Currently it can provide up to 16 channels at 100GHz spacing or 32 channels at 50GHz spacing in C- or L- band (other wavelength bands available on request), with a customer specified starting wavelength. The laser chip can be operated in semi-cooled condition at 40-60℃ while the ambient operating temperature is between 0 and 70℃. A customized wavelength multiplexing filter is used for the bidirectional coupling to a single mode fiber, with an LC connector or fiber pigtail.

 Transmitter Specifications(1)

Note 1: See specifications of TLCX15 series TO-can based TOSA.

Receiver Specifications(2)

Parameter

Sym

Test Conditions

Min.

Typ.

Max.

Unit

Power Supply

Vcc

 

3.0

3.3

3.6

V

Supply Current

Icc

No Loads

 

31

36

mA

Single Ended Responsivity

Rs

Rload=50 Ohm, P>-23dBm, l=1550nm

15

 

30

mV/mW

Differential Responsivity

Rd

Rload=100 Ohm, P>-23dBm, l=1550nm

30

 

60

mV/mW

Small Signal Bandwidth

BW

 

 

1500

 

MHz

Low-Frequency Cut-off

LF

 

 

     11   

 

KHz

Saturation Power

Psat

P > -23 dBm, l=1550 nm

0

3

6

dBm

Single-end Output Impedance

Ro

 

 

50

 

Ohm

Rise/Fall Time (20%-80%)

Tr/Tf

 

 

 

150

ps

Sensitivity @25℃

 

l=1550 nm, 25°C,

@2.5 Gbps, PRBS23,

ER=10 dB, BER=1´10-10

29.5

 

 

dBm

Sensitivity@-40-85℃

 

l=1550 nm, -40°C-85°C, @2.5 Gbps, PRBS23,

ER=10 dB, BER=1´10-10

29

 

 

dBm

Optical Isolation

ISO

l=1530 nm – 1620 nm

-

45

 

dBm

Note 2: Typical Values are at +3.3V@25°C. Product specifications are subject to change without notice.

 Dimensions                                                Rx Pin Assignments(3)

(in millimeters)

  

Pin

Symbol

Description

1

GND

Ground

2

D+

Data P

3

Is

Source current

4

Vcc

DC power supply

5

D-

Data N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note 3: See specifications of TLCX15 series TO-can based TOSA for Tx pin assignment.

Download PDF file

Tunable SFP Transceiver                                                                                        To Top

TSFP15 Series

Key Features

·         Port agnostic (compliant to ITU-T G.metro)

·         16 to 32 channels at 100 GHz spacing

or 32 to 64 channels at 50GHz spacing

·         Hot-Pluggable SFP footprint duplex LC connector interface

·         2.5 - 10 Gbps modulation

·         Single 3.3V power supply

·         Compliant with Class 1 FDA and IEC60825-1 laser safety, SFP MSA, SFF-8472

·         Operating case temperature 0°C to 70°C

Applications

 

·         WDM-PON

·         Mobile fronthaul and backhaul

·         G.metro

·         DWDM sparing

 

The tunable small form-factor pluggable (SFP) transceiver is based on Lightip's patented proprietary technology, the half-wave coupled V-cavity laser (VCL). The laser structure does not involve any grating or epitaxial regrowth, and has only three electrodes for wavelength control, gain and direct modulation, with a total size of only about 500mm x 300mm. With the advantages of compactness, fabrication simplicity and easy wavelength control of VCL, this tunable transceiver offers a cost-effective solution for tunable applications in access, mobile fronthaul and backhaul, data center and metropolitan DWDM networks.

The TSFP15 Series single mode tunable SFP transceiver is hot-pluggable 20-pin duplex SFP module compliant with SFF-8472 MSA. It is based on a Lightip's TLDX15 series tunable XMD TOSA, co-packaged with a PIN ROSA, and an SFP MSA compatible interface. The optical interface is duplex LC connector. Currently it supports 2.5Gbps to 10 Gbps data rates with a typical fiber coupled output power of 3dBm, and can provide 16-32 channels at 100GHz spacing or 32-64 channels at 50GHz spacing in C- or L- band with a customer specified starting wavelength. The transceiver module can be operated under ambient operating temperature between 0 and 70℃. The size of the module is 69x13.7x13.3mm3.

 Specifications

Parameters

Min.

Typ.

Max.

Unit

Average Output Power

0

3

7

dBm

Pout @ Tx Disable Asserted

 

 

-45

dBm

Ambient Operating Temperature

0

-

70

℃

Power Supply Voltage

3.15

3.3

3.45

V

Power Supply Current

-

600

1000

mA

Power Dissipation

-

-

3.3

W

Supply Voltage

3.15

3.3

3.45

V

Modulation Data Rate

                 2.5 - 10

Gbps

Extinction Ratio

3.5

-

8

dB

Rise/Fall Time

 

 

150

ps

Output Optical Eye

Compatible with IEEE 802.3

Wavelength

C- or L-band (other wavelengths available on request)

Number of Channels

16 – 32 @100GHz, 32-64 @50GHz

Side Mode Suppression Ratio

30

35

-

dB

Wavelength tuning time

(Cold Start)

-

30

Sec

Wavelength tuning time

(Operational)

0.5

2

Sec

Rx Wavelength

1250

-

1630

nm

Rx Sensitivity - Pmin

-

-

-24

dBm

Rx Overload - Pmax

-8

-

-

dBm

Rx LOS De-Assert

-

-

-25

dBm

Rx LOS Assert

-35

-

-

dBm

Rx LOS Hysteresis

0.5

-

-

dBm

* Product specifications are subject to change without notice.

 Dimensions                                                       

(in millimeters)

 

Pin Configurations

      

Pin

Name

Description

1

VeeT

Transmitter ground

2

Tx Fault

Transmitter fault indication, open collector/drain output

3

Tx Disable

Transmitter disable

4

MOD-DEF2

Module Definition 2, Data line for Serial ID

5

MOD-DEF1

Module Definition 1, Clock line for Serial ID

6

MOD-DEF0

Module Definition 0, Grounded within the module

7

Rate Select

NC, Function not available

8

LOS

Loss of signal, open collector/drain output

9

VeeR

Receiver Ground

10

VeeR

Receiver Ground

11

VeeR

Receiver Ground

12

RD-

Inverted receiver data out

13

RD+

Receiver data out

14

VeeR

Receiver Ground

15

VccR

Receiver Power, 3.3V ± 5%

16

VccT

Transmitter Power, 3.3V ± 5%

17

VeeT

Transmitter Ground

18

TD+

Transmitter Data In

19

TD-

Inverted Transmitter Data In

20

VeeT

Transmitter Ground

 

Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Unit

Storage Temperature

Ts

-40

+85

℃

Supply Voltage

Vcc

-0.5

4.0

V

Operating Relative Humidity**

RH

5

85

%

* Exceed any of these values may cause non-reversable damage to the device

** Non - Condensing.

 

Recommended Circuit Schematic

 

EEPROM Address Map

For detailed EEPROM information, Please refer to SFF 8472 Rev 9.3.

 

Download PDF file

Wavelength Swept Laser                                                  To Top

TLDAXBXXSMX

Key Features

·         C- or L-band

·          Continuous Wavelength Sweep

·          TEC and Thermistor Inside

·          Simple Tuning Algorithm

·          Small Package Size

 

Applications

 

 

·          Test and Measurement

·          FBG Sensing Systems

·          Gas Sensing 

·          Laser Spectroscopy 

·          Filter Characterization 

 

Optical Characteristics (TOP = 0 to 70℃)

Parameter

Min

Typ

Max

Unit

Output Power

0

5

10

dBm

Output Power Variation

 

0.05

 

dB

Power Stability @12hour

 

0.05

 

dB

Wavelength

C- or L-band

 

Tuning range

 

60

 

nm

Side-Mode Suppression Ratio (SMSR)

35

38

 

dB

Optical Isolation

25

 

 

dB

Linewidth

 

3

5

MHz

Relative Intensity Noise (RIN)

 

-135

 

dB/Hz

Wavelength Sweep Operation

Continuous Sweeping Range (at a fixed operating temperature)

 

30

 

nm

Wavelength Resolution

 

5

 

pm

Wavelength Accuracy

 

±10

 

pm

Wavelength Repeatability

 

±5

 

pm

Sweeping Speed

 

50

 

nm/s

 Electrical and Thermal Characteristics (TOP = 0 to 70℃)

Parameter

Symbol

Min

Typ.

Max

Unit

Operating Case Temperature

TOP

0

 

70

℃

Laser Chip Temperature

TL

5

 

65

℃

Laser Gain Current

I1

 

60

150

mA

Channel Selector Current

I2

 

 

100

mA

Fine Tuning Current

I3

 

 

100

mA

Photodiode Bias Voltage

VPD,ref

-3

 

0

V

Photodiode Current

IPD

20

 

1000

uA

Photodiode Dark Current

ID

 

 

100

nA

Thermistor Resistance

Rth

9.5

10

10.5

KΩ

Thermistor Sensitivity Index

β

 

4050

 

 

TEC Current

ITEC

 

0.5

1

A

TEC Voltage

VTEC

 

2.2

3

V

Mechanical Specifications （Dimensions are in millimeters）

 

 

 

 

 

 

 

 

 

 

Figure 1. Mechanical Dimensions

 

Pin Descriptions

Pin

Symbol

Description

1

TEC+

TEC anode

2

TEC-

TEC cathode

3

GND

Ground

4

LD1

Gain bias

5

GND

Ground

6

PD-

Monitoring PD

7

LD2

Channel selector

8

LD3

Fine tuning

9

RTH

Thermistor

 

* Product specifications are subject to change without notice.

Download PDF file

 

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