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Frontiers of Information Technology & Electronic Engineering
ISSN 2095-9184 (print), ISSN 2095-9230 (online)
2019 Vol.20 No.4 P.490-497
1.3-μm 4×25-Gb/s hybrid integrated TOSA and ROSA
Abstract: The design and fabrication of a compact and low-cost 4×25-Gb/s transmitter optical sub-assembly (TOSA) and receiver optical sub-assembly (ROSA) using a hybrid integrated technique are reported. TOSA and ROSA are developed without thermoelectric cooler for coarse wavelength division multiplexing applications. Physical dimension of the packaged optical sub- assembly is limited to 11.5 mm×5.4 mm×5.4 mm. The design of TOSA and ROSA is employed using a silica-based arrayed waveguide grating chip to select the specific channel wavelength at O-band. In TOSA, the wavelength of four 1.3-μm discrete directly modulated laser chips is well controlled based on the reconstruction equivalent chirp technique. In the back-to-back transmission test, bit error rates for all lanes of cascade of the TOSA and ROSA are small. A clear opening eye diagram is obtained.
Key words: Reconstruction equivalent chirp, Arrayed waveguide grating, Transmitter optical subassembly, Hybrid integrated
关键词组:
References:
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DOI:
10.1631/FITEE.1800371
CLC number:
TN24
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On-line Access:
2019-05-14
Received:
2018-07-04
Revision Accepted:
2018-09-09
Crosschecked:
2019-04-11