A Miniaturized 43 Gbps EML TOSA Employing Impedance Matched FPC Connection

Shirao, Mizuki; Ohata, Nobuo; Fukao, T.; Hatta, Tatsuo; Aruga, Hiroshi

doi:10.1364/ofc.2013.oth4h.6

Cited by 6 publications

(4 citation statements)

References 4 publications

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“…On the other hand, the proposed three-layer structure improves S 11 to better than 22 dB. These results indicate that the proposed three-layer FPC structure has good enough high-frequency characteristics for use in the integrated OSA [18]. Figure 14 shows photographs of the fabricated 100GbE integrated TOSA and ROSA with the built-in Spatial Mux and Demux optics.…”

Section: Electrical Connection For High-frequency Signalsmentioning

confidence: 88%

“…Third, an electrical transmission path with good performance for high speed signals is needed. The technologies used in this model to resolve these issues are described below [14], [16]- [18].…”

Section: Structures Of Tosa and Rosamentioning

confidence: 99%

“…In this paper, we report a compact integrated four-lane 25 Gb/s TOSA (15.1 mm × 6.5 mm × 5.6 mm) and ROSA (17.0 mm × 12.0 mm × 7.0 mm) [17] with built-in Spatial Mux/Demux optics, using three key techniques, a precise lens-alignment technique [14], [16], low-loss built-in Spatial Mux/Demux optics [17] and a matched electrical connection for the high-frequency signals [18]. We demonstrate electrical-optical performance which fully meets the 100GbE specification.…”

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confidence: 99%

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Assembly Technologies for Integrated Transmitter/Receiver Optical Sub-Assembly Modules

Mochizuki

Murao

Shirao

et al. 2017

IEICE Trans. Electron.

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SUMMARYWe have succeeded in developing three techniques, a precise lens-alignment technique, low-loss built-in Spatial Multiplexing optics and a well-matched electrical connection for high-frequency signals, which are indispensable for realizing compact high-performance TOSAs and ROSAs employing hybrid integration technology. The lens position was controlled to within ±0.3 μm by high-power laser irradiation. All components comprising the multiplexing optics are bonded to a prism, enabling the insertion loss to be held down to 0.8 dB due to the dimensional accuracy of the prism. The addition of an FPC layer reduced the impedance mismatch at the junction between the FPC and PCB. We demonstrated a compact integrated four-lane 25 Gb/s TOSA (15.1 mm × 6.5 mm × 5.6 mm) and ROSA (17.0 mm × 12.0 mm × 7.0 mm) using the built-in spatial Mux/Demux optics with good transmission performance for 100 Gb/s Ethernet. These are respectively suitable for the QSFP28 and CFP2 form factors.

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Section: Electrical Connection For High-frequency Signalsmentioning

confidence: 88%

Section: Structures Of Tosa and Rosamentioning

confidence: 99%

mentioning

confidence: 99%

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Assembly Technologies for Integrated Transmitter/Receiver Optical Sub-Assembly Modules

Mochizuki

Murao

Shirao

et al. 2017

IEICE Trans. Electron.

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“…In addition, these technologies needs complicated digital signal processing (DSP) which increases cost and power consumption. No � return-to-zero (NRZ) format, which has been employed m many standards at baud rates of 10/25/40 Gb/s, is a well understood technology [16]. Just like in previous examples, 50 Gb/s NRZ format is the most promising candidate for the next generation serial rate.…”

Section: Introductionmentioning

confidence: 99%