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20MW 1310nm DFB butterfly laser diodes

20MW 1310nm DFB butterfly laser diodes

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Part Number: DFB-31-20-FM

DFB butterfly laser diodes 20MW 1310nm

DFB butterfly laser module is specialized for adopting the high-quality MQW-DFB chip to meet the requirement of a high-speed, specific-wavelength light transmission system. It can be used for continuous-wave and pulsed applications such as sensing, frequency doubling, light detection and ranging, and injection seeding for fiber amplifiers or lasers.

F-tone 20MW 1310nm DFB butterfly laser module produces laser beams with a particular wavelength. It is able to deliver output power of 20MW. The 14-pin butterfly laser module will be supplied with a built-in optical isolator, a monitor photodiode, a thermoelectric cooler, and FC/APC connector and is pigtailed with a polarization-maintaining fiber. The built-in thermoelectric cooler enables the laser device to run stably under various environmental conditions. This series of product has found wide applications in the LAN, WAN, MAN, CATV transmission system, and long distance DMDW transmission system. It also can be used in the stabilized light source, modulated light source, or other communication equipment such as the CATV transmitter.

Features

  • High linearity high power MQW DFB LD chip
  • Built-in Isolator, TEC, Thermistor and Monitor PD
  • Hermetically sealed 14 Pin Butterfly Package Module
  • Optimized for 2.5 Gb/s Modulation Rates
  • Emission wavelength 1310 nm
  • Output power 20MW
  • Single mode FC/APC connector or customized
  • Singlemode fiber pigtail
  • RoHs compliant

Application

  • Long reach analog transmission systems
  • CATV forward-path
  • 1310nm broadcast and point-to-point applications

Pin Description

Package Outline:

Order Information

-X 31 X X X X X
Chip Wavelength Insolator Bandwidth Connector Pigtail Length Power Range
D:DFB 31：1310nm S：Single 1:1.25Gb/s 1：FC/APC 5：0.5M 1:2~4mw
B：Dual 2：2.5Gb/s 2：FC/PC 1：1M
W：Without 3：SC/APC 2:5~7mw
4：SC/PC 3:8~10mw
5：LC/PC 4:11~13mw
W：Without 5:14~16mw
6:17~19mw
7:20~22mw
8:23~24mw

Absolute Maximum Ratings

Parameter Symbol Condition Min. Max. Unit
Operating Case Temperature Tc I=Iop -20 80 °C
Storage Temperature Tstg - -40 85 °C
Laser Forward Current If - - 150 mA
Laser Reverse Bias Vr - - 2 V
Photodiode Reverse Bias Vrpd - - 10 V
TEC Current Itec -20 °C < Tc <+65 °C, -2 2 A
Top=25 °C If=100 mA
TEC Voltage Vc -2.5 2.5 V
ESD - ESD - HBM: R=1500 -500 500 V
ohm, C=100 pF
Lead Solder Temperature - - - 260 °C
Lead Soldering Time - - - 10 S
Fiber Bend Radius - - 30 - mm
Fiber Yield Strength - - - 1 kgf

Optical & Electrical Characteristics

Parameter Symbol Test Conditions Min. Typ. Max. Unit
Center Wavelength λc CW 1300 1310 1320 nm
Spectral Width (-20 dB) Δλ CW - 0.2 0.5 nm
Optical Output Power* Po CW, TL=25 °C - - 24 mW
Optical Isolation IS T=25 °C 30 35 - dB
Side-mode Suppression Ratio SMSR CW 35 - - dB
Threshold Current Ith TL=25 °C - 10 15 mA
Operating Current Iop CW - - 120 mA
Forward Voltage VF CW - 1.2 2 V
Monitor Current Imon Vrpd=5 V 100 - 1500 μA
Monitor Dark Current ID Vrpd=5 V - - 500 nA
Operating Case Temperature T - -20 - 60 °C
Tracking Error γ TE=10log(Po(Tc)/Po(25°C) -1 - 1 dB
Thermistor Resistance Rt T=25 °C 9.5 - 10.5 KΩ
TEC Current IC ΔΤ=40°C - - 1 A
TEC Voltage VC ΔΤ=40°C - - 2 V
Frequency Range F - 45 - 2500 MHz
Cut-off Frequency Fc(-3dB) If=Iop 4 - - GHz
RIN Nr CW, If=Iop, f=2.5GHz - -155 -150 dB/Hz
Carrier Noise Ratio CNR Note 1 51 - - dB
Composite Second Order CSO - - -57 dBc
Composite Triple Beat CTB - - -65 dBc

Note1:

  • If=Iop, Optical Modulation, Index=3.2%/channel (minimum),60 PAL-D unmodulated carries (47 to 550MHz), 10km singlemode fiber, -1dBm received power, Receiver responsivity=0.85A/W.
  • If=Iop, Optical Modulation Index=3.2%/channel (minimum), CNR, CSO, CTB tested value at worst case over all test frequencies. NTSC 120ch., 10km singlemode fiber, -1dBm received power, Receiverresponsivity=0.85A/W



This product belongs to F-tone Networks' optical components product line. For detailed specifications, please contact our sales team. Thank you!
Important Notice:
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.

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Power and Wavelength Testing

Test the signal delivering strength and wavelength, to ensure the signal decoding capacity of the receiver, and the wavelength remains consistent from the transmitter to the receiver.

Power and Wavelength Testing

Traffic Testing

Test the bit error rate and packet loss rate, to make them meet the corresponding standards and ensure the performance of transceivers.

Traffic Testing

Optical Performance Testing

Test the transceivers' eye diagram situation, receiving sensitivity, extinction ratio, wavelength, light-emitting, light-receiving, current and voltage, to ensure the signal quality, stability and reliability of the transmission.

Optical Performance Testing

End Face Testing

Check the end face of the transceivers and keep them clean for more stable data transmission, better performance, and durability.

End Face Testing

Various Switch Tests

Every module is quality tested for compatibility in the multi-brand switches environment, guaranteeing flawless operations.

Various Switch Tests

About F-tone Networks

F-tone Networks is now a world leader in development of optical transceivers and provide a wide range of high-speed optical solutions for optical communication networking, especially for AI, Data Center, enterprise data networking, Industry, aerospace, mining, shipbuilding, railway, metro, long haul transport networking, and mobile access networking applications
F-tone Networks invested in foundational photonics technologies and extensive product development and engineering with global presence in many area also.

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