1996/01/01 by Ashish M. Vengsarkar, A.M. Vengsarkar, P. J. Lemaire +9 · 1 citation
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Fiber Optic Sensors #Cladding (metalworking) #Cladding mode #Composite material #Fiber optic sensor #Insertion loss #Long-period fiber grating #Materials science #Optical fiber #Optics #Optoelectronics #Photonic and Optical Devices #Photonic-crystal fiber #Physics #Plastic optical fiber #Polarization (electrochemistry) #Polarization-maintaining optical fiber
paper · doi:10.1109/50.476137
openalex publication_date 1996/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
We present a new class of long-period fiber gratings that can be used as in-fiber, low-loss, band-rejection filters. Photoinduced periodic structures written in the core of standard communication-grade fibers couple light from the fundamental guided mode to forward propagating cladding modes and act as spectrally selective loss elements with insertion losses act as backreflections <-80 dB, polarization-mode-dispersions <0.01 ps and polarization-dependent-losses <0.02 dB.