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1490nm, 20mW, 2.5G DFB Laser Diode, Single-Mode Fiber Coupled Coaxial Package

  • 1490nm DFB Laser 20 mW Coaxial
  • LDI-1490-DFB-2.5G-20 Laser Performance
  • LDI-1490-DFB-2.5G-20 Laser Output Spectrum
  • LDI-1490-DFB-2.5G-20 Laser Mechanical Drawing
  • 1490nm DFB Laser 20 mW Top View

Request Quote   ships: 2 Wks | item#: RLS/LDI-1490-DFB20

Key Features
  • 20mW CW Power, 80mW Pulsed Power
  • Coaxial Package with Double-Sided Mounting Bracket
  • Single Mode Fiber with FC/APC Connector
  • Supports Data Rates up to 2.5 Gbps
  • Offered by LasersCom, a Laser Lab Source Marketplace Seller
  • Sold & Supported in North America by: LaserDiodeSource.com, part of the
    Laser Lab Source Marketplace Group

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MODEL RLS/LDI-1490-DFB20
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ELECTRICAL-OPTICAL CHARACTERISTICS (Typcial @ T = 25 °C)
  • Wavelength: 1490 nm
  • CW Output Power: 20 mW
  • Pulse Output Power: 80 mW
  • Tracking error: 0.4 dB
  • Wavelength-temperature coeff.: 0.1 nm/°C
  • Side-mode suppression ratio: 55 dB
  • Spectral width: <500 kHz
  • Refer to datasheet for additional specifications
Electrical Specifications
  • Threshold current: 8 mA
  • Operating current: 100 mA
  • Operating voltage: 1.4 V
  • Slope efficiency: 0.18 mW/mA
  • Monitoring output current (PD): 2.0 mA
  • Rise and fall times: 80 ps
Optical Fiber Specifications
  • Single-Mode Fiber G.657.A1, 0.5 m length
  • Fiber Connector: FC/APC
  • Other Fiber and Connector Types Available; Inquire

Product Overview:

1490nm, 20mW Fiber Coupled Laser Diode Overview

The LDI-1490-DFB-2.5G-20/80 is an InGaAsP multi-quantum well laser diode coupled to a single-mode optical fiber and packaged into a hermetic TO-case with a monitor photodiode. The CW output power is 20mW, and pulsed power output up to 80mW. The laser supports data rates up to 2.5 Gbps.

The coaxial package is installed into a double-sided heat sink and mounting bracket for simple handling and mounting as well as enhanced thermal stability.

The laser comes standard with FC/APC connector, but can be ordered with a other connectors; please contact us for information on fiber connector options.

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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