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Chinese Optics Letters, Volume. 21, Issue 1, 011407(2023)

Improvement of bandwidth in a 100 kHz swept laser source with phase controllable signal driving

Zhiwei Yang1,2, Xu Wu2、*, Jihong Pei1, and Shuangchen Ruan1,2、**
Author Affiliations
  • 1College of Electronic Information Engineering, Shenzhen University, Shenzhen 518060, China
  • 2Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, Shenzhen Technology University, Shenzhen 518118, China
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    References (24)
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    Figures & Tables(9)
    Relationship between deformation displacement and DC voltage of piezoelectric ceramics.

    Fig. 1. Relationship between deformation displacement and DC voltage of piezoelectric ceramics.

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    Swept spectrum versus the DC voltage of FFP-TF.

    Fig. 2. Swept spectrum versus the DC voltage of FFP-TF.

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    Comparison of the (a) spectral range of sinusoidal signal and (b) phase adjustable sinusoidal signal.

    Fig. 3. Comparison of the (a) spectral range of sinusoidal signal and (b) phase adjustable sinusoidal signal.

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    Experimental setup: (a) block diagram of driving of the phase adjustable sinusoidal signal; (b) schematic of the FDML swept laser source.

    Fig. 4. Experimental setup: (a) block diagram of driving of the phase adjustable sinusoidal signal; (b) schematic of the FDML swept laser source.

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    (a) Output spectrum and (b) transient intensity output traces of wavelength swept laser sources.

    Fig. 5. (a) Output spectrum and (b) transient intensity output traces of wavelength swept laser sources.

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    SS-OCT point spread functions of a partial reflector placed in the sample arm at different imaging depths.

    Fig. 6. SS-OCT point spread functions of a partial reflector placed in the sample arm at different imaging depths.

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    Detail of the PSF showing an imaging depth of 0.25 mm.

    Fig. 7. Detail of the PSF showing an imaging depth of 0.25 mm.

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    • Table 1. The Central Wavelength Values at Different DC Voltage

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      Table 1. The Central Wavelength Values at Different DC Voltage

      The voltage value increases from 2 V to 6 V
      Voltage/V23456
      Central wavelength/nm1043.951051.271059.511068.271077.14
      The voltage value reduces from 6 V to 2 V
      Voltage/V23456
      Central wavelength/nm1051.121060.531069.781078.931087.58

    • Table 2. The Central Wavelength Values at Different DC Voltage

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      Table 2. The Central Wavelength Values at Different DC Voltage

      The voltage value increases from −6 V to −2 V
      Voltage/V−2−3−4−5−6
      Central wavelength/nm1113.371101.91091.561080.071068.22
      The voltage value reduces from −2 V to −6 V
      Voltage/V−2−3−4−5−6
      Central wavelength/nm1084.161074.321063.931053.821044.36
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    Zhiwei Yang, Xu Wu, Jihong Pei, Shuangchen Ruan, "Improvement of bandwidth in a 100 kHz swept laser source with phase controllable signal driving," Chin. Opt. Lett. 21, 011407 (2023)

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    Paper Information

    Category: Lasers, Optical Amplifiers, and Laser Optics

    Received: Mar. 14, 2022

    Accepted: Aug. 10, 2022

    Published Online: Sep. 13, 2022

    The Author Email: Xu Wu (wuxu@sztu.edu.cn), Shuangchen Ruan (scruan@szu.edu.cn)

    DOI:10.3788/COL202321.011407

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology