1053nm 300mW Polarization-Maintaining Fiber Isolator (Faraday-Based)

Overview

The 1053nm polarization-maintaining fiber isolator is a Faraday-based component that lets light pass in one direction while blocking back-reflections from reaching the source. Built on PM Panda fiber, it is available in single- and dual-stage versions handling up to 300 mW of continuous-wave power. Peak isolation reaches 52 dB in the dual-stage version, with typical insertion loss of 1.8 dB for the single stage. An extinction ratio of 20 dB applies when both axes are working, rising to 22 dB with the fast axis blocked. It suits MOPA fiber lasers, test instruments and research setups where reflected light must be kept away from the source.

Key Features

• Single- and dual-stage options at 1053 nm center wavelength, ±5 nm operating range
• Typical peak isolation of 52 dB (dual stage) and 35 dB (single stage) at 23 °C
• Typical insertion loss of 1.8 dB (single) and 2.8 dB (dual); return loss of 50/50 dB
• Extinction ratio of 20 dB with both axes working, 22 dB with fast axis blocked
• Handles up to 300 mW continuous-wave optical power on PM Panda fiber
• Operating temperature -5 to +50 °C; package φ5.5 x 35 mm

Applications

• MOPA fiber lasers
• Test instruments
• Fiber laser systems
• Research laboratories

Specifications

For pricing, datasheets and OEM/ODM inquiries, contact the F-tone Networks sales team: una@f-tone.com / betty@f-tone.com · WhatsApp: +86 17761163895