Gain Enhancement by ASE Suppression in Er-doped All-Solid Microstructured Fiber

High power ytterbium fiber lasers at extremely long wavelengths by photonic bandgap fiber technology

“…Pureur et al reported a zero-line 977 nm Yb-doped PBGF laser with the ASE above 1000 nm inhibited successfully [37]. More recently, enhancement of the L-band gain by an Er-doped all-solid microstructured fiber by suppressing the ASE at the C-band was reported [38].…”

Design of Single-Band Bandpass Filter Using Photonic Bandgap Fiber by Suppressing Core Modes in Higher Order Bandgaps

“…Numerous efforts have been carried out to manipulate the bandgaps of PBGF for various applications [10], [11], [12], [13], [14], [15]. The photonic bandgaps of the PBGFs have been used to reduce Raman scattering [16], [17], higher order mode suppression [18] and filtering out the amplified spontaneous emission in lasers and fiber amplifiers [19], [20], [21]. Different types of fibers and methods have been introduced for filtering application.…”