Optical Measurements TRIZ Cases
- PIC Optical Transmitter With Beam Steering for Speckle Reduction
Beam steering and real-time wavelength measurement let a PIC optical transmitter cut speckle noise and improve tissue spectroscopy accuracy.
- Dual-Spectrometer Wavelength Control for Narrowed-Line Lasers
Two spectrometers with different free spectral ranges enable precise pulse-laser wavelength control to reduce chromatic aberrations in lithography.
- Wavefront Measurement Using Sinusoidal Gratings to Suppress Diffraction Noise
A sinusoidal diffraction grating suppresses higher order diffracted light, enabling more accurate wavefront measurement of projection optics.
- Frequency-Shifting Optical Cavities for Real-Time Signal Correlation
Two frequency-shifting optical cavities replace scanning and heavy DSP to measure wideband signal cross-correlation in real time.
- Optical Fiber Coupler for Precise Wavelength Separation
A coupled optical fiber region separates light by wavelength, enabling accurate wavelength detection for complex spectra without a spectrometer.
- Optical Referencing With Drift Tracking for Silicon Photonics
Interference-based optical references track wavelength drift without temperature sensors, enabling compact silicon photonics frequency control.