LONE: A Low-Loss, Non-Blocking, and Scalable 8-Port Optical Router

Wavelength	O₁	O₂	O₃	O₄	O₅	O₆	O₇	O₈
I₁	λ₄	λ₅	λ₃	λ₆	λ₂	λ₇	λ₁	λ₀
I₂	λ₅	λ₆	λ₄	λ₇	λ₃	λ₈	λ₀	λ₁
I₃	λ₃	λ₄	λ₂	λ₅	λ₁	λ₀	λ₈	λ₇
I₄	λ₆	λ₇	λ₅	λ₈	λ₀	λ₁	λ₃	λ₂
I₅	λ₂	λ₃	λ₁	λ₀	λ₈	λ₅	λ₇	λ₆
I₆	λ₇	λ₈	λ₀	λ₁	λ₅	λ₂	λ₄	λ₃
I₇	λ₁	λ₀	λ₈	λ₃	λ₇	λ₄	λ₆	λ₅
I₈	λ₀	λ₁	λ₇	λ₂	λ₆	λ₃	λ₅	λ₄

Table 2. Comparison of the number of micro-rings and area consumption of 8-port routers
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Table 2. Comparison of the number of micro-rings and area consumption of 8-port routers
Item Crossbar Reduced crossbar λ-router WRON GWOR LACE LONE
MR 64 56 56 56 48 24 28

Table 3. Comparison of area consumption of 8-port routers
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Table 3. Comparison of area consumption of 8-port routers
Item Crossbar Reduced crossbar λ-router WRON GWOR LACE LONE
Area /μm² 120×120= 105×105= 84.8×84.8≈ 70×120= 120×120= 70×100= 70×90=
14400 11025 7200 8400 14400 7000 6300

Table 4. Optical insertion loss and energy parameters
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Table 4. Optical insertion loss and energy parameters
Parameter Value Parameter Value
MR drop /dB 1 Laser efficiency /dB 30
MR through /dB 0.01 Modulator /mV 5
Waveguide crossing /dB 0.05 Demodulator /mV 0.3
Waveguide bend /dB 0.013

Table 5. Comparison of noise and R_SNR of optical routing LONG and LACE
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Table 5. Comparison of noise and R_SNR of optical routing LONG and LACE
Item Min Average Max
N_Noise /dB LACE -15.2524 -10.9819 -0.58097
LONE -17.4525 -14.2033 -12.1049
R_SNR /dB LACE 0.2875 10.6298 14.9498
LONE 11.6945 13.8416 17.1462

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Jiaying Luo, Junyong Deng, Bowen Yang, Rui Shan, Ping Wang, Chao Hui. LONE: A Low-Loss, Non-Blocking, and Scalable 8-Port Optical Router[J]. Laser & Optoelectronics Progress, 2022, 59(3): 0313001

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