Fast physical-random number generation for laser range finders using a laser diode's frequency noise: comparison of the used lasers for fast random number generation

Yuki Kasuya; Masamichi Suzuki; Kouhei Matsumoto; Hideaki Arai; Takashi Sato; Shuichi Sakamoto; Masashi Ohkawa; Yasuo Ohdaira

doi:10.1117/12.2324692

23 October 2018 Fast physical-random number generation for laser range finders using a laser diode's frequency noise: comparison of the used lasers for fast random number generation

Yuki Kasuya, Masamichi Suzuki, Kouhei Matsumoto, Hideaki Arai, Takashi Sato, Shuichi Sakamoto, Masashi Ohkawa, Yasuo Ohdaira

Author Affiliations +

Proceedings Volume 10780, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications VII; 107801D (2018) https://doi.org/10.1117/12.2324692
Event: SPIE Asia-Pacific Remote Sensing, 2018, Honolulu, Hawaii, United States

Abstract

While optical laser range finders use random signals to determine distance, a laser diode’s fast frequency noise can perform the task. Moreover, this signal can be applied to physical-random number generation. This research describes a method, whereby laser diode’s frequency noise characteristics generate a large number of physical-random numbers and determine the distance to a target [1] [2]. We tested the random number generating- and distance- measuring capabilities of two types of lasers; a Fabry-Perot-LD and VCSEL: (Vertical Cavity Surface Emitting Laser). With the Fabry-Perot etalon functioning as frequency discriminator, we investigated the physical-random numbers’ characteristics from both Fabry-Perot-LD’s and the VCSEL’s characteristic’s points of view. We verified the generated binary number’s randomness, using NIST FIPS140-2 test, and noted the Random Number Generation (RNG) speed of a FP-LD was 48 Gbit/s, and that of a VCSEL was 159 Gbit/s. When the generation speed of the physical-random number is high, we can increase the sampling rate of our range finders and improve resolution.

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Yuki Kasuya, Masamichi Suzuki, Kouhei Matsumoto, Hideaki Arai, Takashi Sato, Shuichi Sakamoto, Masashi Ohkawa, and Yasuo Ohdaira "Fast physical-random number generation for laser range finders using a laser diode's frequency noise: comparison of the used lasers for fast random number generation", Proc. SPIE 10780, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications VII, 107801D (23 October 2018); https://doi.org/10.1117/12.2324692

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KEYWORDS

Semiconductor lasers

Vertical cavity surface emitting lasers

Laser range finders

Fabry–Perot interferometers

Binary data

Diodes

Interference (communication)

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