Three-dimensionally interconnected bidirectional optical backplane

1999 ◽  
Vol 11 (7) ◽  
pp. 880-882 ◽  
Author(s):  
G. Kim ◽  
R.T. Chen
Keyword(s):  
Optical Backplane

Optical backplane

2002 ◽  
Author(s):  
J. Moisel ◽  
H.-P. Huber ◽  
J. Guttmann ◽  
O. Krumpholz ◽  
B. Lunitz ◽  
...  
Keyword(s):  
Optical Backplane

Optoelectronic packaging for 16-channel optical backplane bus with VHOEs

2007 ◽  
Author(s):  
J. H. Choi ◽  
H. Bi ◽  
J. Ellis ◽  
R. T. Chen
Keyword(s):  
Optoelectronic Packaging ◽  
Optical Backplane

scholarly journals 137 Gb/s PAM-4 Transmissions at 850 nm over 40 cm Optical Backplane with 25 G Devices with Improved Neural Network-Based Equalization

2019 ◽  
Vol 9 (23) ◽  
pp. 5095
Author(s):  
Qianwu Zhang ◽  
Yuntong Jiang ◽  
Hai Zhou ◽  
Chuanlu Deng ◽  
Shuaihang Duan ◽  
...  
Keyword(s):  
Neural Network ◽  
Forward Error Correction ◽  
Optical Power ◽  
Pulse Amplitude ◽  
Performance Comparison ◽  
Decision Feedback ◽  
Bit Rate ◽  
Optical Backplane ◽  
The Impact ◽  
Equalization Method

An improved neural network-based equalization method is proposed and experimentally demonstrated. The up-to-137 Gb/s transmission of four level pulse amplitude modulation (PAM-4) signals with 25 G class 850 nm optical devices is achieved over an in-house fabricated 40 cm optical backplane. An in-depth investigation is conducted regarding the impact of delayed taps and spans on equalization performance. A performance comparison of the proposed method with the traditional maximum likelihood sequence estimation (MLSE) and decision feedback equalization (DFE) is also undertaken. For the bit rate from 80 to 100 Gb/s, the proposed method achieves an adopted hard-decision forward error correction (HD-FEC) requirement at a received optical power (RoP) of −9 and −8 dBm, while DFE and MLSE cannot meet the HD-FEC requirement. When the bit rate increases from 120 to 137 Gb/s, the proposed equalization method still successfully maintains the acceptable system performance at an RoP of −4 and −2.5 dBm. Furthermore, the specific bit error rate (BER) performances for varied maximum achievable bit rate under different RoPs by applying MLSE and the proposed method are also analyzed. This provides an important potential solution to realize the future data centers.

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