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Thorlabs DFB1531P Thorlabs DFB1531P — 1531 nm, 10 mW (Min), Butterfly DFB Laser, PM Fiber, FC/APC, Internal Isolator
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Thorlabs

DFB1531P

Thorlabs DFB1531P — 1531 nm, 10 mW (Min), Butterfly DFB Laser, PM Fiber, FC/APC, Internal Isolator

The Thorlabs DFB1531P is a 1531 nm, 10 mW (Min) Butterfly DFB Laser featuring PM Fiber, an FC/APC connector, and an internal isolator, with a package weight of 1.54 lbs and a release date of July 18, 2025. Refer to current manufacturer documentation for lifecycle status details. Request a quote by submitting the exact part number, quantity, and application requirements.

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Why no listed price?

Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Thorlabs references — within one business day.

Manufacturer
Thorlabs
Part number
DFB1531P
Product series
1531 nm, 10 mW (Min), Butterfly DFB Laser, PM Fiber, FC/APC, Internal Isolator
Data verification
Manufacturer evidence reviewed

For a faster response, include quantity, condition, and delivery destination.

Exact part-number verificationTechnical properties are matched to DFB1531P.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Product Name
1531 nm, 10 mW (Min), Butterfly DFB Laser, PM Fiber, FC/APC, Internal Isolator
Lifecycle Status
Refer to current manufacturer documentation
Release Date July 18, 2025
Package Weight 1.54 lbs
Release Date
July 18, 2025
Package Weight
1.54 lbs

Engineering context

Identification and RFQ Guidance

Confirm the exact configuration

Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

What to include in your RFQ

Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Thorlabs DFB1531P. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.