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1550nm DFB Laser Diode, 20mW CW / 70mW Pulsed, PM Fiber-Coupled Butterfly Package

  • 1550nm DFB laser diode main img
  • 1550nm DFB laser diode

sku / item#: LD4B-1550-DFB-2.5G-20-BTF-2-SMP13-FA-CW-0.5
ships: Request a Quote for Current Ship Date

Key Features
  • 20mW CW Output Power, 70mW Pulsed Output Power
  • Butterfly Package with PD, TEC, and Temperature Sensor
  • PM Fiber with FC/APC Connector

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MODEL LD4B-1550-DFB-2.5G-20-BTF-2-SMP13-FA-CW-0.5
PRICE $865.00
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
  • PM Fiber, 0.5 m length
  • FC/APC Connector
  • Other Fiber and Connector Types Available; Inquire

Product Overview:

1550nm DFB Laser Diode | Pulsed & CW Mode

The LD4B-1550-DFB-2.5G-20-Butterfly-2-SMP13-FA-CW-0.5 is an InGaAsP multi-quantum well DFB Laser coupled to a PM optical fiber and packaged in a 14-pin Butterfly package. The CW output power is 20mW and pulsed power output is 70mW at max current bias. The Butterfly package includes an integrated monitor photodiode, thermoelectric cooler, and temperature sensor for enhanced thermal stability. These laser diodes come 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.

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