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1570nm DFB Laser, 20mW CW / 60mW Pulsed, 2.5Gbps, PM, DIL Package

sku / item#: LD4B-1570-DFB-2.5G-20-DIL-2-SMP13-FA-CW-0.5
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Key Features
  • Wavelength 1570nm ±3nm
  • 20 mW CW / 60 mW Pulse Optical Output Power
  • Mini-DIL Package with Internal Photodiode, TEC, Thermistor
  • PM, FC/APC Connector
  • Sold and Supported by LaserDiodeSource.com, a division of Laser Lab Source
  • Manufactured by:

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MODEL LD4B-1570-DFB-2.5G-20-DIL-2-SMP13-FA-CW-0.5
PRICE $725.00
  • Wavelength: 1570 nm ±3 nm
  • Pulse Optical Power: 60 mW
  • CW Optical Power: 20 mW
  • Spectral Width: 0.09 nm (CW, P = 20 mW, -20 dB, OSA)
  • Spectral Width: 500 kHz (CW, P = 20 mW, delayed self- heterodyne method)
  • Wavelength-Temperature Coeff.: 0.13 nm/°C
  • Side Mode Suppression Ratio: 55 dB (typ, CW, P = 20 mW)
  • Refer to Datasheet for Additional Specifications
Pulse Specifications
  • Pulse Optical Power: 60 mW (Iop = 450 mW)
  • Rise and Fall Times: 80 ps (typ; 120 ps max, see datasheet)
  • Capacitance (PD): 10 pF
  • Pulse Mode: Pulse Duration 10 μs, Duty Cycle = 1%
Electrical Specifications - CW Mode
  • Threshold Current: 8 mA (typ)
  • Operating Current: 100 mA (typ, CW, P = 20 mW, SM1 Fiber)
  • Operating Voltage: 1.4 V (typ, CW, P = 20 mW)
  • Slope Efficiency: 0.2 mW/mA (CW)
  • Monitoring Output Current (PD): 1.7 mA
Internal TEC Specifications
  • Max Operating Current: 0.7 A
  • Max Operating Voltage: 3.9 V
  • Heat Pump Capacity: 1.4 Watt (max)
  • Max Delta T: 72 K
  • Thermistor: 10k Ω
Output Fiber Specifications
  • PM Fiber, Furcation Tubing ⌀0.9 mm
  • FC/APC Connector
  • Other Fiber and Connector Types Available; Inquire

Product Overview:

DFB Laser 1570nm, 20 mW CW / 60 mW Pulse, 2.5G Fiber Coupled Module Details

LD4B-1570-DFB-2.5G-20-DIL-2-SMP13-FA-CW-0.5 is a multiple quantum well distributed feedback grating laser diode (MQW DFB), with internal photodiode, coupled to an optical fiber. This laser is mounted in a Mini-DIL Package with internal TEC, thermistor, and photodiode.
    • Wavelength: 1570 nm
    • Cavity type: DFB
    • Optical power: up to 20 mW in CW mode and up to 60 mW in pulse mode
    • Package type: mini-DIL
    • Built-in thermistor, TEC
    • Built-in monitor photodiode

Proper Handling and Operation of Diode Lasers

Diode lasers are highly susceptible to damage from ESD and from temperatures exceeding their specified safe operating range. The user is advised to use care and proper ESD safety practices when handling them to avoid damage to the laser. A properly rated low noise current source, a low thermal resistance mount and a temperature controller should be used for optimal device performance and reliability.

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