--- type: product schema_version: 1 stock_number: "68839-1" canonical_url: "https://www.artisantg.com/68839-1/Delta-Information-Systems-PMM004" json_url: "https://www.artisantg.com/68839-1/Delta-Information-Systems-PMM004.json" generated_at: "2026-11-07T05:42:02.466Z" last_updated: "2026-10-14T13:00:51.160-05:00" --- # Delta Information Systems / GDP Space Systems PMM004 Phase Modulator _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: Delta Information Systems - Model: PMM004 - Condition: Used and in Excellent Condition - Price: Quote only - Availability: In stock - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 3 lb, estimated - Shipping dimensions: 12X9X6 in, estimated ## Categories - Test Equipment > Electrical Test > Electrical Parts (primary) ## Details Part Numbers: 700-100227, 730-100336-05, YT-998 ## Function Electro-optic phase modulator that converts electrical RF drive into controlled optical phase shifts of a continuous-wave or pulsed carrier. Enables high-bandwidth coherent modulation, chirp control, and laser phase stabilization by applying precise phase delay with minimal amplitude modulation. Specified by RF bandwidth, phase-shift range proportional to drive voltage, insertion loss, and optical isolation; designed for integration into fiber-optic or free-space systems with bias control and temperature compensation for long-term stability. ## Images - - - -