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
- Corning SMF-28 Ultra Fiber; Furcation Tubing ⌀0.9 mm
- Fiber Connector: FC/APC
- Other Fiber and Connector Types Available; Inquire
1490nm, 20mW, 2.5G DFB Laser Diode, Single-Mode Fiber Coupled Coaxial Package
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
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 |
1490 nm |
Laser Output Power |
0.02 W |
Fiber-Coupled Output |
Fiber-Coupled Packages |
Spectral Line Width (Hz) |
< 500 kHz |
Mode Structure |
Single-Mode |
Laser Diode Package Type |
Coaxial Fiber-Coupled |
Product Overview
1490nm, 20mW Fiber Coupled Laser Diode Overview
The LD4B-1490-DFB-2.5G-20-COAXB-2-SM1-FA-CW-1.0 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.