DFB Laser Diode

DFB Tunable laser diode with SM fiber pigtail, offering wide wavelength tuning up to 40nm for optical testing, LiDAR, and sensing applications. The DFB Tunable Laser Diode in butterfly package with SM fiber pigtail is designed for high-precision optical applications requiring flexible wavelength control. Covering O-, C-, or L-band with a wide tuning range up to 40 nm , this module enables dynamic wavelength selection for advanced photonic systems.

Main Advantage: Combines O / C / L bands and Butterfly for laser emission applications.
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Description

PRODUCT PROFILE

Tunable Laser Diode DFB Butterfly Package with SM Fiber Pigtail (O/C/L Band) Overview

The DFB Tunable Laser Diode in butterfly package with SM fiber pigtail is designed for high-precision optical applications requiring flexible wavelength control. Covering O-, C-, or L-band with a wide tuning range up to 40 nm, this module enables dynamic wavelength selection for advanced photonic systems.

Integrated with TEC, thermistor, and monitor photodiode, the module ensures stable wavelength output and precise control under varying operating conditions. The simple tuning mechanism allows efficient wavelength adjustment through current control, making it suitable for both laboratory and industrial environments.

With high spectral purity, excellent stability, and compact butterfly packaging, this tunable laser module is widely used in test and measurement systems, LiDAR, and optical sensing applications.

TECHNICAL INFORMATION

Key Features

  • Wide tuning range up to 40 nm
  • Available in O, C, and L bands
  • Stable output with TEC temperature control
  • Integrated monitor photodiode and thermistor
  • High SMSR up to 38 dB
  • Narrow linewidth (≤5 MHz)
  • Compact butterfly package with SM fiber pigtail
  • Simple current-based tuning control
TECHNICAL INFORMATION

Applications

  • Optical test and measurement systems
  • LiDAR and ranging systems
  • Optical sensing applications
  • Tunable light source for laboratories
  • Fiber optic system testing
TECHNICAL INFORMATION

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

Parameter Symbol Min Typ Max Unit Notes
Operating case temperature TOP 0 – 70 ℃
Laser chip temperature TL 25 – 65 ℃
Laser Gain current I1 – 35 60 mA 1
Channel Selector Current I2 – – 120 mA
Fine Tuning Current I3 30 60 – 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 1
Thermistor sensitivity index β – 3930 – – 1
TEC current ITEC – 0.6 – A 2
TEC voltage VTEC – 2.2 – V 2

Notes:

  • With the laser chip temperature set to 45°C.
  • In steady state, with the laser chip temperature set to 45°C, and a case temperature of 70°C.
TECHNICAL INFORMATION

Optical Parameters(TOP = 0 to 70℃)

Parameter Min Typ Max Unit Notes
Output Power 3 5 – dBm 1
Output Power Variation – 0.5 – dB
Power Stability @12hour – 0.05 – dB
Tuning Range – 35 – nm
SMSR 35 38 – dB
Optical Isolation 25 – – dB
Linewidth – – 5 MHz 2
RIN – -135 – dB/Hz

Notes:

  • For all channels.
  • Intrinsic Lorentzian linewidth, measured e.g. using a phase noise spectral density measurement,disregarding low frequency phase noise originating from the drive circuitry.
TECHNICAL INFORMATION

Absolute Maximum Ratings

Parameter Symbol Min Typ Max Unit Notes
Maximum Supply Voltage Vcc -0.5 – 4.0 V
Storage Temperature TS -40 – 85 ℃
Relative Humidity RH 0 – 85 % 1
LD Forward Bias Voltage – – – 2.3 V
Laser Gain current I1 – – 120 mA
Channel Selector Current I2 – – 120 mA
Fine Tuning Current I3 – – 120 mA
Photodiode bias voltage VPD, ref -5 – 0 V
Photodiode reverse current IPD, ref – – 2 mA
TEC Current ITEC – – 1 A
TEC Voltage VTEC – – 3 V
Lead Soldering Temperature and Time Tsold/t – – 260 ℃/s
Fiber bend radius r 30 – – mm
TECHNICAL INFORMATION

Product Size

Dimensions are in millimeters

Tunable Laser Diode DFB Butterfly Package with SM Fiber Pigtail (O/C/L Band) — Product Size
Product Size
TECHNICAL INFORMATION

Pin Configuration

Pin Description Pin Description
1 TEC (+) 8 Null
2 LD3 9 Null
3 Thermistor 10 Null
4 Thermistor 11 LD-
5 MPD (+) 12 LD1
6 MPD (-) 13 LD2
7 Null 14 TEC (-)
TECHNICAL INFORMATION

Ordering Information

Family Name Package Bite Rate Modulation Fiber Connector Wavelength Wavelength Range Spacing
TL C: TOCAN TOSA

D: XMD TOSA

T:TOCAN

BF:Butterfly

A: CW

E:Discrete

D: DML

E: EML

SM

MM

PM

0: null

1: SC/PC

2: SC/APC

3: SC/UPC

4: FC/PC

5: FC/APC

6: FC/UPC

7: LC/PC

8: LC/APC

9: LC

ReceptacleX:customized

C: C Band

L: L Band

40: 40nm

15: 15nm

100GHz
SYSTEM INTEGRATION

DFB Laser Integration

For DFB laser selection, specify the target wavelength, required optical power, package, spectral characteristics and temperature-control requirements. Match the available wavelength-tuning conditions to the absorption line or optical system in the stated application.

ENGINEERING FAQ

Frequently Asked Questions

What type of photonic device is Tunable Laser Diode DFB Butterfly Package with SM Fiber Pigtail (O/C/L Band)?

Tunable Laser Diode DFB Butterfly Package with SM Fiber Pigtail (O/C/L Band) belongs to the DFB product family and is used for laser emission applications.

What wavelength or spectral range does Tunable Laser Diode DFB Butterfly Package with SM Fiber Pigtail (O/C/L Band) use?

The specified wavelength or spectral range is O / C / L bands. Refer to the technical specifications above for operating conditions and applicable tolerances.

What package is available for Tunable Laser Diode DFB Butterfly Package with SM Fiber Pigtail (O/C/L Band)?

The product is listed in Butterfly format. Check the package drawing and pin or fiber details above before integration.

What applications are associated with Tunable Laser Diode DFB Butterfly Package with SM Fiber Pigtail (O/C/L Band)?

The product is listed for Optical Communications, Optical Test & Measurement, LiDAR & Ranging. Suitability should be evaluated against the required optical and electrical specifications.

FURTHER READING

Related Technical Resources

Additional information

Device Technology

DFB

Wavelength Band

Multi-Band Laser

Application

LiDAR & Ranging, Optical Communications, Optical Test & Measurement

Package Type

Butterfly

Device Function

Laser Emission

Wavelength / Spectral Range

O / C / L bands

Optical Interface

SM Fiber

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