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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 21,
  • Issue 1,
  • pp. 011407-
  • (2023)

Improvement of bandwidth in a 100 kHz swept laser source with phase controllable signal driving

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Abstract

Swept source optical coherence tomography (SS-OCT) is a new noninvasive technique for assessing tissue. Although it has advantages, such as being label-free, noninvasive, and with high resolution, it also has drawbacks: there has been no in-depth research into identifying the driving of swept source. Based on preliminary research, we demonstrate a novel driving modulation method of a fiber Fabry–Perot tunable filter ranging phase adjustable as a tool for making bandwidth compensation of a swept laser source. This novel method is analyzed in detail; a swept laser source with a sweep rate of 100.5 kHz over a range of 152.25 nm and at a center wavelength of 1335.45 nm is demonstrated.

© 2023 Chinese Laser Press

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