Journal
OPTICAL AND QUANTUM ELECTRONICS
Volume 54, Issue 2, Pages -Publisher
SPRINGER
DOI: 10.1007/s11082-021-03509-3
Keywords
OAM; FSO; Comb generator; Broadband laser source
Funding
- SERB [CRG/2019/006580]
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This study proposes and demonstrates a high-speed data transmission system using multiplexing of 4 OAM modes, achieving good performance and feasibility with low power penalty and BER values, which has significant implications for free space communication.
Orbital angular momentum (OAM) beams are basically twisted beams with infinite number of possible orthogonal OAM states. A 640 Gbps (4 x 16 x 10 Gbps) data transmission over 180 m FSO link, implemented by multiplexing of 4 OAM modes, each containing 16 wavelength channels has been proposed and demonstrated. An optical frequency comb generator, containing a single laser source is used as broadband laser source. Low power penalty of 2.91 dB at a BER value < 10(-9) with very good Q-value (> 5.5) and open eye diagrams have been achieved, which reveal the potential of the proposed system for free space communication.
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