Stamped reflective optics in high-power optical assemblies

Peter Gordon; Yang Chen; R. Ryan Vallance; King-Fu Hii; Jeremy Burke; Tiger Ninomoya; Bernard Lee

doi:10.1117/12.2650466

14 March 2023 Stamped reflective optics in high-power optical assemblies

Peter Gordon, Yang Chen, R. Ryan Vallance, King-Fu Hii, Jeremy Burke, Tiger Ninomoya, Bernard Lee

Proceedings Volume 12403, High-Power Diode Laser Technology XXI; 124030O (2023) https://doi.org/10.1117/12.2650466
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

High-power lasers have many applications in diverse fields such as optical communication, material processing (manufacturing), free-space optics, and 3D vision techniques such as LiDAR. These applications require optical components that alter or redirect laser beams to be tolerant to harsh environments, stable to thermal changes, and tolerant of high power levels that might otherwise damage materials or surfaces. It is common to use processes like machining, grinding, or polishing to achieve both form and finish requirements in either refractive or reflective materials. In this paper, we present a new alternative process for reflective freeform optical components suited to high-power assemblies that are made of aluminum for its thermal properties but manufactured by ultra-high precision stamping. The aluminum freeform mirrors can be used in air for free-space applications external to the laser module, or they can be assembled inside a laser diode package to provide beam shaping and redirection of the high-power beams very near the laser diode. This paper presents an exemplary optical design and thermal analyses for two cases: continuous wave (stead-state) lasers and pulsed (transient) lasers. The analyses demonstrate distinct benefits in thermal aberrations and lower operating temperatures for aluminum relative to a similar component made of a common polymer used in molded optics.

Conference Presentation

Citation Download Citation

Peter Gordon, Yang Chen, R. Ryan Vallance, King-Fu Hii, Jeremy Burke, Tiger Ninomoya, and Bernard Lee "Stamped reflective optics in high-power optical assemblies", Proc. SPIE 12403, High-Power Diode Laser Technology XXI, 124030O (14 March 2023); https://doi.org/10.1117/12.2650466

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available