Home  >  Wavelengths 1310nm-1690nm  >  LasersCom  >  RLS/LDI-1550-DFB-2.5G-20/70-COAX-SM1


1550nm DFB Laser Diode, 20mW Output Power (CW), Single Mode Fiber-Coupled Coaxial Package

  • 1550nm DFB laser 20mW
  • LDI-1550-DFB Fiber Coupled Spectral Output
  • LDI-1550-DFB Fiber Coupled Laser Performance
  • LDI-1550-DFB Fiber Coupled Laser Drawing
  • 1550nm DFB Laser Fiber Coupled Coax Package

sku / item#: RLS/LDI-1550-DFB-2.5G-20/70-COAX-SM1
ships: In Stock - Quantity Available: 2

Key Features
  • DFB Laser, 20mW CW Output Power, 70mW Pulsed Output Power
  • Coaxial Package with Double-Sided Mounting and Heat Sink Bracket
  • Single Mode Fiber with FC/APC Connector
  • Spectral Width 0.08 nm ( <500 kHz )
  • 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

Price and Delivery Quote

Buy Now / Add to Cart

Technical Questions for this Product


Customers Also Considered:

Why do Scientists & Engineers Choose Laser Lab Source?

MODEL RLS/LDI-1550-DFB-2.5G-20/70-COAX-SM1
PRICE $297.90
Optical specifications (Typcial @ T = 25 °C)
  • Wavelength: 1550nm (+/- 5nm)
  • CW Output Power up to 20 mW
  • Pulsed Mode Output Power up to 70 mW
  • Wavelength-Temperature Coefficient: 0.1 nm/°C
  • Spectral Width: 0.08 nm, (<500 kHz)
  • Side-Mode Suppression Ratio: 55 dB
  • Slope Efficiency: 0.23 mW/mA
  • Pulsed Rise, Fall Times (20-80%): 80 ps (package type dependent)
  • Resonance Frequency: 6 GHz
  • Current Tuning Coefficient: 0.006 nm / mA
Electrical specifications (Typcial @ T = 25 °C)
  • Operating Current (CW, 20mW): 100 mA
  • Operating Current (Pulse, P = 70 mW): 450 mA
  • Threshold Current: 8 mA
  • Operating Voltage: 1.3 Volts
  • Monitoring Output Current : 1.5 mA
  • Dark Current: < 100 nA
Optical Fiber
  • Single-Mode Fiber G.657.A1, 0.5 m length
  • Fiber Connector: FC/APC
  • Other Fiber and Connector Types Available; Inquire

Product Overview:

1550nm DFB Laser Diode with Single Mode Fiber Pigtail and FC/APC Connector:

These 1550nm DFB laser diodes are InGaAsP multi-quantum well laser diodes coupled to a single-mode optical fiber. They are packaged in a hermetically sealed coaxial package and include an internal monitor photodiode. The CW output power is rated up to 20mW and the pulsed output power is rated up to 70mW. 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. These lasers come standard with FC/APC connector; FC/PC is also normally in-stock. 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.

Why do Scientists & Engineers Choose Laser Lab Source?

  • Get DIRECT, Fast Tech-Support from the Product Engineer, No Sales Person in the Middle

  • Get the Lowest Price, Factory Direct, No Mark-Up's, Suppliers Post their Own Price

  • Get a 30 Day Evaluation Period with No Risk Return on Most Products, Check Availability