The 1784 Fiber-coupled VCSEL Laser Source is designed for use in laboratory applications or for test and measurement of 25-Gbit/s Datacom devices. The1784 is an 850 nm, 25 Gbit/s, directly modulated, multimode vertical-cavity surface-emitting laser (VCSEL). It uses high-performance microwave circuitry to ensure clean delivery of the electrical input to the VCSEL chip, and the VCSEL's 50-μm output fiber enables the use of either 50 μm or 62.5 μm FC/PC connectorized fiber. The AC-coupled input and internal bias circuitry allows connection to any high-speed 50-Ω SMA-compatible signal source without the need for additional bias circuitry. A 10-position switch allows for optimization of the VCSEL bias for different Datacom applications.
Key Features |
50-mm fiber connection |
Convenient and easy to use |
Ideal in fiber and breadboard systems for characterizing datacom transceivers |
Specifications |
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Newport 1784 |
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Features | Parameters |
Center Wavelength | 850 nm |
Bit Rate | 25 Gbit/s |
Output Power | 0.75 mW |
Bandwidth, Small Signal | 18 GHz |
Noise/Ripple (rms) | < 2.8 % |
Fiber-Optic Connector | FC/PC |
Cut-off Frequency | 10 MHz |
Power Requirements | +/-15 V, 50 mA |