Near-infrared photodetector CIPRM series

InGaAsfastwith integrated amplifier

Product description
The Excelitas CIPRM Series balanced optical receiver modules combine matched InGaAs PIN photodiodes with a low-noise, high-gain transimpedance amplifier (TIA) to provide sensitive detection while rejecting common-mode optical noise. The design targets applications requiring precise differential signal extraction in the presence of interfering optical background.

Key details

• Part numbers: CIPRM-110, CIPRM-210
• Balanced optical receiver with two matched photodiodes for high common mode rejection ratio (CMRR)
• Two optical input options: single-mode fiber pigtails (‑110 model) and FC receptacle (‑210 model)
• RF output, electrical supply inputs and two photo-current monitor outputs
• Rugged metal casing with flange mounting holes for secure installation
• Wide operating temperature range and enhanced EMI/EMC characteristics for harsh environments
• Designed and built to be RoHS compliant (EU Directive 2015/863/EU)

Functional description
The module uses two low-noise, closely matched InGaAs photodiodes and a transimpedance amplifier to maximize sensitivity while cancelling common-mode optical noise. Photo-current monitor outputs allow real-time observation of detector currents; an RF output provides the extracted signal for downstream electronics or test equipment.

Technical specifications

• Spectral range: 800 - 1650 nm
• Bandwidth: 200 MHz
• High-performance InGaAs photodiodes and transimpedance amplifier (TIA)
• Matched responsivity between the two photodiodes
• Photo-current monitor outputs (two)
• Rugged mechanical casing with flange mounting
• RoHS compliant (EU Directive 2015/863/EU)
• Enhanced EMC / EMI performance for demanding environments