Efficiency optimization of ridge waveguide amplifiers at 1122 nm

Nils Werner; Marie Triebkorn; Arnim Ginolas; Sabrina Kreutzmann; Philipp Hildenstein; Katrin Paschke; Günther Tränkle

doi:10.1117/12.2649631

15 March 2023 Efficiency optimization of ridge waveguide amplifiers at 1122 nm

Nils Werner, Marie Triebkorn, Arnim Ginolas, Sabrina Kreutzmann, Philipp Hildenstein, Katrin Paschke, Günther Tränkle

Proceedings Volume 12440, Novel In-Plane Semiconductor Lasers XXII; 124400O (2023) https://doi.org/10.1117/12.2649631
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

In this work, Ridge Waveguide Amplifiers (RWA) with a gain wavelength around 1122nm and different device geometries are analyzed in detail using electro-optical measurements. The measurement results are compared with simulations based on a beam propagation approach to evaluate them and gain a better understanding of the device behavior. Optimized operating conditions are derived with respect to the electro-optical and amplification efficiency of the amplifier. The potential of RWAs with a combination of diffraction-limited beam quality and high output power is demonstrated in miniaturized laser modules supplied with polarization-maintaining optical fibers for input and output and optional nonlinear crystals. More than 200mW of yellow-green laser light with a wavelength of 561nm is provided through the fiber, enabling applications in the bio-medical field.

Conference Presentation

Citation Download Citation

Nils Werner, Marie Triebkorn, Arnim Ginolas, Sabrina Kreutzmann, Philipp Hildenstein, Katrin Paschke, and Günther Tränkle "Efficiency optimization of ridge waveguide amplifiers at 1122 nm", Proc. SPIE 12440, Novel In-Plane Semiconductor Lasers XXII, 124400O (15 March 2023); https://doi.org/10.1117/12.2649631

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