Submounted APD Die - Siletz™ VFP 1000 Series High Gain, Low Noise NIR SCM-APD
Voxtel’s Back-illuminated, high-gain, ultra-low-excess-noise SCM-APDs combine the industry’s highest gain and lowest excess noise, providing unsurpassed sensitivity in the near infrared spectral range from 950 to 1700nm. Voxtel’s single-carrier multiplication avalanche photodiodes (SCM-APDs) exceed the capabilities of conventional APDs in both gain and noise performance. This allows for active optical systems with better sensitivity, longer range, and lower laser power.
With high gain, low noise and high quantum efficiency, Voxtel’s SCM-APDs are ideal for low-light-level detection, or other applications that call for industry-leading sensitivity in the 900–1700 nm spectral band. Coupling the SCM-APD to a low-noise amplifier produces a receiver with high gain, superior noise equivalent power, and better sensitivity.
The Siletz series of SCM-APDs has a low effective ratio of ionization coefficients (keff ~.02), and can be operated with low excess noise: F(M)<2 up to M=10, and F(M)<3 up to M~40, with maximum usable linear mode gain of Siletz SCM-APDs at typically M=50. Standard telecom NIR APDs are not useful above M=15, and carry a much greater noise penalty (k=0.4; F(M)>7 at M=15).
Submounted APD Die - SiletzTM VFP 1000 Series features
- High-gain NIR InGaAs single carrier-multiplication APD (SCM-APD)
- 950–1700nm response
- High responsivity
- Low excess noise and high gain combine for superior sensitivity not achieved with conventional APDs
- Provides high-gain with low noise, leading the industry in solid-state NIR detection
- Custom devices available upon request
- Free-space optical communications
- Laser range finding
- Optical time domain reflectometry
Applications
- Free-space optical communications
- Laser range finding
- Optical time domain reflectometry
- Optical coherence tomography
- Fluorescence measurements, spectroscopy, chromatography and electrophoresis