


ELECTRICAL-OPTICAL CHARACTERISTICS (TYPCIAL @ T = 25 °C)
- Wavelength: 1590 nm
- Spectral Width: 0.09 nm
- Side-Mode Suppression Ratio: 55 dB
- Pulse Optical Power: 60 mW
- CW Optical Power: 20 mW
- Slope Efficiency: 0.23 mW/mA
- Tracking Error: 0.4 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
- Capacitance (PD): 10 pF
ELECTRICAL SPECIFICATIONS
- Threshold current: 8 mA
- Operating current: 100 mA
- Operating voltage: 1.4 V
- Monitoring output current (PD): 1.5 mA
OPTICAL FIBER SPECIFICATIONS
- Corning SMF-28 Ultra, Furcation Tubing ⌀0.9 mm
- FC/APC Connector
- Other Fiber Types and Connectors Available; Inquire
1590nm DFB, 20mW CW / 60mW Pulsed Output Power, Narrow Linewidth, Fiber-Coupled Laser Diode
Key Features
- Wavelength 1590 nm
- Linewidth < 500 kHz
- Data rate up to 2.5 Gbps
- Optical power up to 20 mW (CW) / 60 mW (Pulse)
- Corning SMF-28 Ultra Fiber; FC/APC Connector
Shipping Information
Shipping rates in the USA:
– All products: $25
– Please contact us for International Shipping Rates
Warranty Information
This product is sold with a full one year warranty. It is warrantied to be free from defects in material and/or workmanship for a period of one year from the date of shipment.
Weight |
1 lbs |
---|---|
Dimensions |
10 × 8 × 6 in |
Top Level LASER DIODE Power Ranges |
1 mW - 500 mW |
Top Level LASER DIODE Sub-Ranges |
1200nm - 1600nm |
Laser Wavelength |
1590 nm |
Laser Output Power |
0.02 W |
Fiber-Coupled Output |
Fiber-Coupled Packages |
Spectral Line Width (Hz) |
< 500 kHz |
Mode Structure |
Single-Mode |
Cavity Structure |
DFB Lasers |
Laser Diode Package Type |
Coaxial Fiber-Coupled |
Product Overview
1590nm, 60mW Pulsed Output Power, Narrow Linewidth Laser Diode
LD4B-1590-DFB-2.5G-20-COAXB-2-SM1-FA-CW-0.5is 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.
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- • Wavelength: 1590 nm
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- • Cavity type: DFB
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- • Linewidth < 500 kHz
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- • Data rate up to 2.5 Gbps
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- • Optical power: up to 20 mW (CW) / 60 mW (Pulse)
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- • Single-mode fiber G.657.A1
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- • 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.