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1570nm, 20mW (CW) / 60mW (Pulse) Laser Diode, Coaxial Single-Mode Fiber Coupled

  • 1570nm DFB Laser 20mW Coaxial Package
  • 1570nm 20mW DFB CW Laser Diode Power Current Graph
  • 1570nm 60mW DFB Laser Diode Pulse Power Current Graph
  • 1570nm 20mW DFB 2.5G Laser Diode Output Spectrum
  • 	1570nm DFB 2.5G Laser Diode Package Pinout
  • 1570nm DFB Laser 20mW Coaxial Top View

sku / item#: LDI-1570-DFB-2.5G-20/60-B-2-SM1-FA-CW
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Key Features
  • Wavelength 1570 nm
  • Linewidth < 500 kHz
  • Optical power 20 mW (CW) and 60 mW (Pulse)
  • Single-mode fiber G.657.A1; FC/APC Connector
  • Sold and Supported by LaserDiodeSource.com, a division of Laser Lab Source

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MODEL LDI-1570-DFB-2.5G-20/60-B-2-SM1-FA-CW
PRICE $425.00
  • Wavelength: 1570 nm
  • Spectral width: 0.09 nm
  • Pulse Optical Power: 60 mW
  • CW Optical Power: 20 mW
  • Tracking error: 0.4 dB
  • Side-Mode Suppression Ratio: 55 dB
  • Wavelength-Temperature Coeff.: 0.1 nm/°C
Pulse Specifications
  • Pulse Mode: Pulse Duration 10 μs, duty cycle = 0.01
  • Rise and Fall Times: 80 ps
Electrical Specifications
  • Threshold current: 8 mA
  • Operating current: 100 mA
  • Operating voltage: 1.4 V
  • Slope efficiency: 0.23 mW/mA
  • Monitoring output current (PD): 1.5 mA
Optical FIber Specifications
  • Corning SMF-28 Ultra, Furcation Tubing ⌀0.9 mm
  • FC/APC Connector
  • Other Fiber and Connector Types Available; Inquire

Product Overview:

1570nm, 20mW CW / 60mW Pulse, 2.5G DFB Laser Diode Overview

LDI-1570-DFB-2.5G-20/60-B-2-SM1-FA-CW is an InGaAsP MQW laser diode with internal photodiode, coupled to an optical fiber and packaged into a hermetic TO-case. This compact coaxial laser is mounted in a double-sided bracket to facilitate mounting and heat-sinking.
    • Wavelength: 1570 nm
    • Cavity type: DFB
    • Linewidth < 500 kHz
    • Data rate up to 2.5 Gbps
    • Optical power: up to 20 mW (CW) and 60 mW (Pulse)
    • Single-mode fiber G.657.A1
    • Package types: coaxial
    • Built-in monitor photodiode

Important Notes on Operating Laser Diodes:

Electrical Operation: Operating a laser diode above the maximum ratings shown on the data sheet even for very short periods of time can damage the laser diode or reduce its lifetime. They should be electrically biased with a "laser diode driver" class current supply with low electrical noise and protection against voltage and current surges. Laser diodes are very sensitive to electrostatic discharge (ESD). Proper ESD precautions must be taken.

Mounting and Temperature Control: In order to maintain the lifetime of a laser diode, proper heat management is essential. Due to the design of the laser diode, heat is typically dissipated only through the base plate of the diode‘s package. A proper heat conducting interconnection between the diodes base plate and the heat sink must be maintained. Some devices require the use of a thermo-electric temperature controller (TEC controller) to remove the heat from the laser and stabilize the temperature.

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