--- type: product schema_version: 1 stock_number: "53118-1" canonical_url: "https://www.artisantg.com/53118-1/Coherent-Chopper" json_url: "https://www.artisantg.com/53118-1/Coherent-Chopper.json" generated_at: "2026-11-07T08:38:01.165Z" last_updated: "2026-10-15T05:35:41.513-05:00" --- # Coherent / Rofin-Sinar Chopper Control Unit _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: Coherent - Model: Chopper - Condition: Used and in Good Condition - Price: $450.00 USD - Availability: In stock, 1 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 8 lb, estimated - Shipping dimensions: 14X14X6 in, estimated ## Categories - Lab & Analytical > Controllers (primary) ## Details This unit has a dented housing. View Photo of dented housing. ## Platform Controls chopper motor speed and phase with internal/external synchronization. Provides frequency and phase adjustments via knobs. Displays frequency via 4-digit LED. Compatible with optical benches and laser systems requiring synchronized beam modulation. Interfaces with function generators and oscilloscopes via BNC connectors. ## Application The unit controls the modulation of a laser beam by adjusting chopping frequency and phase. It features a 4-digit LED display for frequency monitoring and BNC connectors for synchronization. External frequency and phase adjustments are made via knobs, enabling precise control over the laser's on/off cycles for applications such as laser micromachining and spectroscopy. ## Images - - - -