High gain O-band bismuth-doped fiber amplifier based on signal and pump dual-pass structure

Article Optics

Experimental investigation of BDFA-based O-band direct-detection transmission using an optical recirculating loop

Yang Hong et al.

Summary: We built an optical recirculating loop based on bismuth-doped fiber amplifier (BDFA) to investigate the performance of amplified O-band transmission over long distances. Both single-wavelength and wavelength-division multiplexed (WDM) transmission were studied with various direct-detection modulation formats. We reported on (a) transmission over lengths of up to 550 km in a single-channel 50-Gb/s system operating at wavelengths ranging from 1325 nm to 1350 nm, and (b) rate-reach products up to 57.6 Tb/s-km (after accounting for the forward error correction redundancy) in a 3-channel system.

OPTICS EXPRESS (2023)

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Article Engineering, Electrical & Electronic

Gain Clamped Bi-Doped Fiber Amplifier With 150 nm Bandwidth for O- and F-Bands

Aleksandr Khegai et al.

Summary: Global data traffic growth poses challenges for telecom companies to increase data transmission rate. Expanding the spectral range of DWDM systems by including the O-band and E-band can increase optical links capacity. Research shows that Bi-doped fiber amplifiers operating in the O- and E-bands can achieve the widest gain spectrum.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2022)

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Article Engineering, Electrical & Electronic

Transient processes and cross talk in an O-band bismuth-doped fibre amplifier

S. Alyshev et al.

Summary: This study investigates the transient processes and cross talk characteristics in an O-band bismuth-doped phosphosilicate fibre amplifier, demonstrating that cross talk intensity is minimal within certain modulation frequency ranges. The results indicate the potential application of O-band bismuth-doped fibre amplifiers in multichannel high-speed data transmission systems.

QUANTUM ELECTRONICS (2021)

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Article Optics