Compact OPO-based RGB source

Dicky Lee; Peter F. Moulton

doi:10.1117/12.420777

30 March 2001 Compact OPO-based RGB source

Dicky Lee, Peter F. Moulton

Proceedings Volume 4294, Projection Displays VII; (2001) https://doi.org/10.1117/12.420777
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

In this paper we discuss our red, green, and blue (RGB) optical parametric oscillator (OPO) light source for projection display applications. Our source consists of a diode-pumped pump laser and a LBO-based OPO. Based on our Nd:YLF gain-module design, the pump laser is frequency doubled to serve as the pump source for the OPO. The unconverted pump power is recycled as the green light for projection. The singly resonant, non-critically phase- matched OPO has, to date, generated 13 W of 898-nm signal power and an estimated 9.3 W of intra-cavity idler power at 1256 nm. With approximately 76% of pump depletion, the power of the residual green light for projection is about 5.8 W. We have extra-cavity doubled the signal to produce approximately 3.5 W of 449-nm blue light and intra-cavity doubled the idler to produce approximately 6 W of 628-nm red light. The OPO-based RGB source generates about 4000 lumens of D65-balanced white light. The overall electrical power luminous efficiency (diodes only) is about 14.6 lumens/Watt.

Citation Download Citation

Dicky Lee and Peter F. Moulton "Compact OPO-based RGB source", Proc. SPIE 4294, Projection Displays VII, (30 March 2001); https://doi.org/10.1117/12.420777

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