Visualization 2: Fiber Bragg grating interrogation using wavelength modulated tunable distributed feedback lasers and a fiber-optic Mach–Zehnder interferometer Anirban Roy Arup Lal Chakraborty Chandan Kumar Jha 10.1364/AO.56.003562.v002 https://opticapublishing.figshare.com/articles/media/Visualization_2_Fiber_Bragg_grating_interrogation_using_wavelength_modulated_tunable_distributed_feedback_lasers_and_a_fiber-optic_Mach_Zehnder_interferometer/4954388 Pulse monitoring using the peak of the 1530.182 nm FBG reflection spectrum while it is attached to a human wrist Originally published in Applied Optics on 20 April 2017 (ao-56-12-3562) 2017-04-20 00:00:00 Visualization Applied Optics ao interferometer Bragg tunable wavelength monitoring 1530.182  nm FBG reflection spectrum grating Mach feedback lasers interrogation Pulse 20 April 2017