Double-grating frequency shifter for low-coherence heterodyne interferometry

Wavelength-adjustment-free optical low c

Wavelength-adjustment-free optical low coherence interferometry for high-resolution and highly accurate optical network analysis of arrayed-waveguide gratings

✍ K. Takada; M. Amada; S. Satoh 📂 Article 📅 2005 🏛 Elsevier Science 🌐 English ⚖ 213 KB

The core technique for the highly accurate network analysis of arrayed-waveguide gratings (AWGs) with optical low coherence interferometry at 1.5 lm involves propagating a 1.3 lm laser light through the interferometer where the AWG is installed in one of two arms. By combining a DFB LD that has a fi