--- type: product schema_version: 1 stock_number: "87193-1" canonical_url: "https://www.artisantg.com/87193-1/Zygo-7702" json_url: "https://www.artisantg.com/87193-1/Zygo-7702.json" generated_at: "2026-11-07T11:09:21.690Z" last_updated: "2026-10-22T05:35:42.053-05:00" --- # Zygo 7702 Laser Head _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: Zygo - Model: 7702 - Condition: Used and in Excellent Condition - Price: $2,250.00 USD - Availability: In stock, 1 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 15 lb, estimated - Shipping dimensions: 12X9X6 in, estimated ## Categories - Test Equipment > Optical Test > Heads (primary) ## Details Part Number: 8070-0102-01 ## Function Helium-neon continuous wave two-frequency laser operating at 632.8 nm wavelength with output power exceeding 625 microwatts. Produces linearly polarized beam available in 3 mm or 6 mm diameter options with frequency difference of 20 MHz ± 1600 Hz. Exhibits exceptional beam pointing stability less than 0.5 arc seconds per degree Celsius and vacuum wavelength stability of 0.01 ppm per 24 hours. Requires ±15 VDC dual supply. Designed for heterodyne interferometric measurement systems requiring multiple measurement axes and long-term measurement accuracy. ## Images - - - -