--- type: product schema_version: 1 stock_number: "44723-1" canonical_url: "https://www.artisantg.com/44723-1/Spectra-Physics-117A" json_url: "https://www.artisantg.com/44723-1/Spectra-Physics-117A.json" generated_at: "2026-11-07T02:06:43.787Z" last_updated: "2026-10-14T13:00:51.160-05:00" --- # Spectra-Physics 117A Stabilized Helium-Neon Laser _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: Spectra-Physics - Model: 117A - Condition: Used and in Excellent Condition - Price: $350.00 USD - Availability: In stock, 1 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 6.5 lb, estimated - Shipping dimensions: 14X14X6 in, estimated ## Categories - Test Equipment > Optical Test > Laser Sources (primary) ## Function Single-frequency helium-neon laser system providing stabilized 632.8nm output with active frequency control via thermal regulation of cavity length. Outputs linearly polarized TEM00 mode beam with typical power levels 0.5-2mW. Incorporates internal reference interferometer for wavelength stabilization achieving fractional frequency stability better than 10^-8. Features BNC connector for frequency error signal output and power supply interface via multi-pin circular connector. Used for interferometry, holography, precision metrology, optical frequency standards, and coherent optical communications research. Requires external DC power supply providing regulated high voltage and heater current. ## Images - - - -