Voxtel released an avalanche photodiode (APD) receiver with 1‐gigahertz bandwidth and a large 200‐μm‐diameter optical area. The product is a high bandwidth large‐area NIR APD receiver, which suits it for a broad range of laser rangefinders and laser designators, and for applications in free‐space optical communications, optical instrumentation, and LADAR/LIDAR.
The model RIP1‐NJAC APD photoreceiver is the latest entry in Voxtel’s Siletz line of single‐carrier multiplication avalanche photodiode (SCM‐APD) products. The receiver integrates the low‐excess‐noise SCM‐APD with a low noise transimpedance amplifier (TIA). Voxtel’s Siletz SCM‐APDs are low‐excess‐noise NIR–SWIR APDs (with an equivalent ionization coefficient keff < 0.02), and allow for the receiver to operate at high avalanche gain, boosting the optical signal over the amplifier noise level without the degrading effects of avalanche‐induced excess noise. The ultra‐low excess noise and high gain make the RIP1‐NJAC a sensitive photoreceiver, offering a maximum response over 50 A/W at 1550 nm, with operating gain up to 50.
A single‐stage thermoelectric (TE) cooler is included to eliminate temperature‐induced gain variation and allow optimal performance over the range of application environments. The receiver is available with an optional fiber pigtail.
Voxtel, www.voxtel‐inc.com/apds
