Compact Optical Module of Homodyne Detection

Mikami, Hideharu; Kurokawa, Tetsuji; Watanabe, Keiji

doi:10.1143/jjap.51.08ja01

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…The mixed beam is coherently detected by a phase-diversity homodyne detection system. [20][21][22][23][24][25][26] Then, the output signal corresponding to the net electric field amplitude of the signal light is obtained:…”

Section: Principlementioning

confidence: 99%

Microholographic Optical Data Storage with Spatial Mode Multiplexing

Mikami¹,

Watanabe²

2013

Jpn. J. Appl. Phys.

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We use the improved Faddeev-Jackiw quantization method to quantize the electromagnetic field and its Lagrange multiplier fields. The method's comparison with the usual Faddeev-Jackiw method and the Dirac method is given. We show that this method is equivalent to the Dirac method and also retains all the merits of the usual Faddeev-Jackiw method. Moreover, it is simpler than the usual one if one needs to obtain new secondary constraints. Therefore, the improved Faddeev-Jackiw method is essential. Meanwhile, we find the new meaning of the Lagrange multipliers and explain the Faddeev-Jackiw generalized brackets concerning the Lagrange multipliers.

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Section: Principlementioning

confidence: 99%

Microholographic Optical Data Storage with Spatial Mode Multiplexing

Mikami¹,

Watanabe²

2013

Jpn. J. Appl. Phys.

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High-speed single-pixel imaging by frequency-time-division multiplexing

2020

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We propose and experimentally demonstrate high-speed single-pixel imaging by integrating frequency-division multiplexing and time-division multiplexing (techniques used widely in telecommunications) and applying the combined technique, namely, frequency-time-division multiplexing (FTDM), to optical imaging. Specifically, FTDM single-pixel imaging uses an array of broadband, spatially distributed, dual-frequency combs (i.e., spatial dual combs) for multidimensional illumination and detects an image-encoded time-domain signal with a single-pixel photodetector in a FTDM manner. As a proof-of-principle demonstration, we use the method to show ultrafast two-color (bright-field and fluorescence) single-pixel microscopy of breast cancer cells at a high frame rate of 32,000 fps and ultrafast image velocimetry of fluorescent particles flowing at a high speed of > 2 m / s .

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Diffraction Focal Position and Vector Diffraction Theory for Micro Holographic Storage Systems

et al. 2014

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Abstract:In this study, we proposed a method to determine the optimal focal position for micro-holographic storage systems, using vector diffraction theory; the theory provides exact solutions when the numerical aperture (NA) exceeds 0.6. The best diffraction focus was determined by the position and wavelength corresponding to minimal spherical aberration. The calculated refractive index modulation, polarization illumination, and boundary conditions at the interface of different media were analyzed. From the results of our analysis, we could confirm the size of micrograting as a function of NA and wavelength, based on vector diffraction theory, compared with scalar diffraction theory which defines the micrograting by . To demonstrate our analysis, we adapted an optical alignment method using a Twyman-Green interferometer, and could obtain good agreement between analysis and experimental results.

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Compact Optical Module of Homodyne Detection

Cited by 3 publications

References 21 publications

Microholographic Optical Data Storage with Spatial Mode Multiplexing

Microholographic Optical Data Storage with Spatial Mode Multiplexing

High-speed single-pixel imaging by frequency-time-division multiplexing

Diffraction Focal Position and Vector Diffraction Theory for Micro Holographic Storage Systems

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