--- type: product schema_version: 1 stock_number: "48670-50" canonical_url: "https://www.artisantg.com/TestMeasurement/48670-50/Thorlabs-Profile-WDM-81550-20-DFB-Source-1556-56nm" json_url: "https://www.artisantg.com/TestMeasurement/48670-50/Thorlabs-Profile-WDM-81550-20-DFB-Source-1556-56nm.json" generated_at: "2026-11-07T10:53:19.293Z" last_updated: "2026-10-27T19:05:40.290-05:00" --- # Thorlabs / Profile WDM 81550-20 DFB Source 1556.56nm _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: Profile - Model: WDM 81550-20 - Condition: Used and in Excellent Condition - Price: $995.00 USD - Availability: In stock, 1 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 2 lb - Shipping dimensions: 18X12X8 in ## Categories - Test Equipment > Optical Test > DFB Laser Sources (primary) - Military and Embedded Equipment > Embedded & Industrial > Other Modular ## Details This Thorlabs / Profile Model WDM 81550-20 DFB Source is used and in excellent condition. ### Features - Fiber Type: PMF, Fast Axis - Wavelength: 1556.56nm - Output Power: 20mW - Optical Interface: FC/APC ## Images -