Balanced Photoreceiver Selection Guide

A balanced photoreceiver consists of two well-matched photodetectors so that a small signal not subtracted is amplified. Balanced Photoreceivers are especially useful in applications such as absorption spectroscopy, or heterodyne detection applications where you have a weak signal and need to cancel out residual intensity noise. Specifically, the New Focus Nirvana™ series is ideal for OCT and interferometric measurements, and is designed to eliminate the problems associated with manually balancing the reference and signal beams. It has a built-in low-frequency feedback loop that auto-balance between signal and reference arms.

Description	Features
Adjustable Gain and Bandwidth Balanced Receivers	Reduces common-mode noise by 25 dB Better noise performance than higher-bandwidth versions Adjustable gain and bandwidth settings	Adjustable Gain and Bandwidth Balanced Receivers
Nirvana Auto-Balanced Optical Receivers	Reduces common-mode noise by up to 50 dB Maintains automatic DC balance between reference and signal arms Auto balanced or manual balanced modes Uncompromised gain and bandwidth	Nirvana Auto-Balanced Optical Receivers
1 MHz Large Area Balanced Optical Receivers	Reduces common-mode noise by 40 dB Large-area photodiodes for easy alignment Adjustable gain settings	1 MHz Large Area Balanced Optical Receivers
80 MHz Balanced Optical Receivers	Reduces common-mode noise by 25 dB High gain with low noise Visible and near-IR versions	80 MHz Balanced Optical Receivers
650 and 800 MHz Balanced Optical Receivers	Reduces common-mode noise by 25 dB Large 650-MHz or 800-MHz bandwidth Three convenient photocurrent-monitor outputs	650 and 800 MHz Balanced Optical Receivers

Product Comparison

Balanced Photoreceiver Selection Guide