--- type: product schema_version: 1 stock_number: "59805-5" canonical_url: "https://www.artisantg.com/TestMeasurement/59805-5/Yokogawa-Ando-AQ4251-Light-Source-LD-Unit" json_url: "https://www.artisantg.com/TestMeasurement/59805-5/Yokogawa-Ando-AQ4251-Light-Source-LD-Unit.json" generated_at: "2026-11-07T09:51:18.855Z" last_updated: "2026-07-30T09:10:57.047-05:00" --- # Yokogawa / Ando AQ4251 Light Source (LD) 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: Ando - Model: AQ4251 - Condition: Used and in Excellent Condition - Price: $185.00 USD - Availability: In stock, 1 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 5 lb - Shipping dimensions: 14X14X6 in ## Categories - Test Equipment > Optical Test > LD Sources (primary) - Military and Embedded Equipment > Embedded & Industrial > Other Modular ## Details This Yokogawa / Ando AQ4251 Light Source (LD) Unit is used and in excellent condition. ### Configuration - Optical Interface: PC - Fiber Type: Singlemode - Operating Wavelengths: 1310nm and 1550nm - Max Output Power: -5 dBm This unit requires JDSU / Acterna / WWG 2060 Universal Test Adapters, which are available for purchase from our website here: (Item #58832). Click Here for 1310nm spectrum. Click Here for 1550nm spectrum. ## Images - - - -