40G optical receivers in stock

40G optical receivers and QSFP+ transceivers are available from multiple suppliers, including FS, Discovery Semiconductors, T1 Nexus, and DigiKey, supporting both single-mode and multimode applications.

Available 40G Optical Receivers

• Discovery Semiconductors 40G PIN+TIA Receivers: These receivers operate up to 40 Gb/s for wavelengths from 1064 nm to 1650 nm in single-mode fiber, and up to 25 Gb/s for 850 nm multimode fiber. They include linear and limiting amplifiers, optional CDR for 25 Gb/s, and integrated balanced optical receivers for DPSK/DQPSK systems. Lab-ready versions are available for safe handling in educational or test environments .
• DSC-R410 Balanced Optical Receivers: Designed for DPSK, DQPSK, and dual-polarization DPSK applications up to 40 Gb/s. Features include high conversion gain (1800 V/W), excellent OSNR performance, differential GPPO RF outputs, and high-reliability InGaAs photodiodes. Available as modules or plug-and-play Lab Buddy instruments .

40G QSFP+ Transceivers

• FS 40G QSFP+ Modules: Offer a range of modules with reach from 150 m to 80 km, suitable for high-density switching, routing, and data center applications. Available from nearby warehouses with 30-day free returns .
• T1-QSFP-40G-SR4: Four-channel, pluggable, parallel fiber-optic transceiver for InfiniBand QDR/DDR/SDR. Supports 40 Gb/s over multimode fiber (850 nm VCSEL) with distances up to 300 m on OM3 fiber. Provides increased port density and cost savings .
• ATGBICS PT-40G-PLR4-31-C: 40 Gb/s QSFP+ transceiver at 1310 nm with MPO-12 connector, available through DigiKey with datasheets, pricing, and stock information .

Considerations for Selection

• Fiber Type: Single-mode (SMF) vs multimode (MMF) compatibility.
• Wavelength: 850 nm for multimode, 1064–1650 nm for single-mode.
• Form Factor: QSFP+ modules for high-density networking; standalone optical receivers for lab or specialized systems.
• Application: Data centers, high-speed networking, DPSK/DQPSK systems, or educational labs. These suppliers provide ready-to-ship stock and detailed specifications, making it straightforward to select the appropriate 40G optical receiver or transceiver for your application.