Photodetection at or below 1 micron wavelengths (Conference Presentation)

Madison Woodson; Steven Estrella; Kenneth Hay; Angsuman Roy; Keye Sun; Jesse Morgan; Andreas Beling; R. Jacob Baker; Daniel Renner; Milan Mashanovitch

doi:10.1117/12.2510627

8 March 2019 Photodetection at or below 1 micron wavelengths (Conference Presentation)

Madison Woodson, Steven Estrella, Kenneth Hay, Angsuman Roy, Keye Sun, Jesse Morgan, Andreas Beling, R. Jacob Baker, Daniel Renner, Milan Mashanovitch

Author Affiliations +

Proceedings Volume 10912, Physics and Simulation of Optoelectronic Devices XXVII; 1091210 (2019) https://doi.org/10.1117/12.2510627
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

Links at 1 micron offer key advantages over longer wavelength links. Both ultra-stable, low noise Nd:YAG lasers and high power efficiency, temperature-stable GaAs lasers operate at wavelengths around 1 micron. These components are particularly beneficial for quantum optical systems and links which require stability over a wide range of temperatures, such as are required in avionics. However, a key component missing in these 1 micron photonic links is a high-power photodiode receiver with high linearity and high quantum efficiency. Freedom Photonics and the University of Virginia have collaborated to develop photodiodes which fill this need. The photodetectors are based on an optimized vertically illuminated modified uni-traveling carrier (MUTC) photodiode technology. We report devices with quantum efficiencies in excess of 80% at 1064 nm, with a 3-dB bandwidth of 28 GHz, for a 20µm diameter device. The same device size handles very high power, with a 1-dB compression of >16 dBm RF power at a 64-mA photocurrent. These photodiodes have a major impact on peak performance of a photonic link, supporting high link gain and large bandwidths. Additionally, the high linearity of these devices minimizes noise and signal distortion, maximizing spurious-free dynamic range (SFDR). These are the first photodiodes of this type which have been packaged and made commercially available for this target wavelength.

Conference Presentation

Citation Download Citation

Madison Woodson, Steven Estrella, Kenneth Hay, Angsuman Roy, Keye Sun, Jesse Morgan, Andreas Beling, R. Jacob Baker, Daniel Renner, and Milan Mashanovitch "Photodetection at or below 1 micron wavelengths (Conference Presentation)", Proc. SPIE 10912, Physics and Simulation of Optoelectronic Devices XXVII, 1091210 (8 March 2019); https://doi.org/10.1117/12.2510627

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KEYWORDS

Photodiodes

Quantum efficiency

Gallium arsenide

High power lasers

Interference (communication)

Nd:YAG lasers

Photodetectors

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