Study on a v-band signals and pulses generator with a tunable optical carrier to sideband ratio

Hongyao Chen; Tigang Ning; Jing Li; Li Pei; Jin Yuan; Xiaodong Wen

doi:10.3788/COL201715.060605

Journals >Chinese Optics Letters >Volume 15 >Issue 6 >Page 060605 > Article

Chinese Optics Letters
Vol. 15, Issue 6, 060605 (2017)

Study on a v-band signals and pulses generator with a tunable optical carrier to sideband ratio

Hongyao Chen¹, Tigang Ning^1、*, Jing Li¹, Li Pei¹, Jin Yuan¹, and Xiaodong Wen²

Author Affiliations

¹Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China

²College of Physics and Engineering, Qufu Normal University, Qufu 273165, China

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DOI: 10.3788/COL201715.060605 Cite this Article Set citation alerts

Hongyao Chen, Tigang Ning, Jing Li, Li Pei, Jin Yuan, Xiaodong Wen. Study on a v-band signals and pulses generator with a tunable optical carrier to sideband ratio[J]. Chinese Optics Letters, 2017, 15(6): 060605 Copy Citation Text

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Block diagram of the proposed v-band signals and pulses generator scheme. LO, local oscillator; SMF, single mode fiber; OSA, optical spectrum analyzer; OSC, oscilloscope; PD, photodiode; ESA, electrical spectrum analyzer; BERT, bit error rate tester.

Fig. 1. Block diagram of the proposed v-band signals and pulses generator scheme. LO, local oscillator; SMF, single mode fiber; OSA, optical spectrum analyzer; OSC, oscilloscope; PD, photodiode; ESA, electrical spectrum analyzer; BERT, bit error rate tester.

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Calculation and simulation results: (a) OCSR versus bias angle θ at calculation (black line) and simulation (red line) cases; (b) OCSR versus bias angle θ with a different extinction ratio (ER).

Fig. 2. Calculation and simulation results: (a) OCSR versus bias angle

θ

at calculation (black line) and simulation (red line) cases; (b) OCSR versus bias angle

θ

with a different extinction ratio (ER).

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Fig. 3. Simulation results of the proposed generator when

θ

equals 157.8°: (a) optical spectrum at the output of the DP-MZM; (b) electrical spectrum at the output of the PD without SMF transmission (red) and with 20 km SMF transmission(blue); (c) BER curves and corresponding eye diagram, BTB transmission (red), 20 km transmission (blue), and power penalty (

Δ

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Fig. 4. Simulation and results of OCSR versus bias voltage drift: (a) the voltage drift effect of

V_{bias_a}

V_{bias_b}

, and

V_{bias_c}

, respectively; (b) the voltage drift superposition effect of

V_{bias_a}

and

V_{bias_b}

; (c) the voltage drift superposition effect of

V_{bias_a}

V_{bias_b}

, and

V_{bias_c}

. (Note that for ease of expression, ‘

+

’ represents voltage drift ranges from 0 to

+ 10 mV

, ‘

-

’ represents voltage drift ranges from

- 10

to 0 mV, and ‘a, b, c’ represents the

V_{bias_a}

V_{bias_b}

, and

V_{bias_c}

, respectively. For example, ‘

+ a - b + c

’ represents voltage drifts of the

V_{bias_a}

and

V_{bias_c}

, which ranges from 0 to

+ 10 mV

, and the voltage drift of

V_{bias_b}

, which ranges from

- 10

to 0 mV.)

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Fig. 5. Simulation results of the proposed generator when

θ

equals 102.6°: (a) optical spectrum at the output of the DP-MZM; (b) the waveforms of the generated triangular-shaped pulses with different pulse durations (100 ps yellow line, 66.7 ps green line, 50 ps red line, 40 ps blue line).

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Fig. 6. Simulation results of the proposed generator when

θ

equals 180°: (a) optical spectrum at the output of the DP-MZM; (b) the waveforms of the generated Nyquist waveform pulses with different pulse durations (100 ps yellow line, 66.7 ps green line, 50 ps red line, 40 ps blue line).

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