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Posted: May 11, 2009

Voxtel Releases 4 Gigabit Per Second High-Bandwidth, High-Gain, Low-Excess-Noise NIR APD Receiver

(Nanowerk News) Voxtel has announced the release of its ĎSiletzí series of APD receivers, responding to the demand for eye-safe and highly sensitive optical communications, LIDAR, and LADAR in the near infrared (NIR) spectrum. Voxtelís Siletz APD receiver optical subassembly provides sensitivity 2 to 4 dBm improved over any other APD receiver currently available on the market covering the 950Ė1700 nm spectral range, and operates at frequencies up to 2.7 GHz.
Voxtelís Siletz receiver series is based on its patented single carrier multiplication InGaAs APD (SCM-APD). The SCM-APD has higher gain (M > 50) and lower excess noise (F(M) ≈ 2) than conventional APDs. The higher gain and lower avalanche noise of the SCM-APD provides amplification of the NIR optical signal over the amplifier noise floor, providing better than Ė44 dBm noise equivalent power (NEP) and superior bit error rate (BER) performance over the entire frequency range. The SCM-APDs provide 2x better temperature stability compared to conventional APDs, reducing demands on bias stabilization and temperature compensation.
The REP-1XJ0A model Siletz receiver is packaged in a hermetic TO-8 package with a thermoelectric cooler (TEC). The TEC provides the ability to stabilize the APD temperature, easing the system integration effort. The APD receiver is available with the option for single- and multi-mode fiber tails.
Voxtelís SCM-APD receiver is a high-performance product not yet available from any other manufacturer.
About Voxtel
Voxtel, Inc., of Beaverton, Oregon, is a provider of optoelectronic devices using novel semiconductor architectures and engineered nanostructured materials, and a leading developer of sophisticated detectors and electro-optical imaging systems for a wide range of government, industrial, and scientific markets. Their product technologies include near-infrared laser radar (LADAR) receivers, radiation-hardened imagers for space applications, highly sensitive avalanche photodiodes for fiber and free-space telecommunications, and nanotechnology-engineered materials. For more information, visit Voxtelís website at
Source: Voxtel (press release)
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