# @optica.worldwide on Instagram

- **Type:** Image
- **Original URL:** https://www.instagram.com/p/DZc-OjDD3bu
- **Gondola URL:** https://gondola.cc/posts/66623850-opticaworldwide-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/c585a74612.jpg
- **Posted:** 2026-06-11T16:42:08.000+00:00
- **Account Owner:** Optica (@optica.worldwide) — https://gondola.cc/optica.worldwide

## Caption

Photonic Chip Delivers the Rainbow.

Researchers have been working to create smaller and more efficient solutions, but these chip-scale devices cannot rival the spectral range of their tabletop counterparts.

Now, this integrated photonic chip from caltechedu provides a continuous spectrum of coherent light from blue wavelengths to the mid-infrared. The #innovation is based on an optical parametric oscillator (OPO), a resonator that exploits a nonlinear material to convert laser light into two beams with widely separated frequencies.

The resonator is designed to only couple light with frequencies around half that of the input laser, with higher harmonics remaining out of resonance. This strategy makes it possible to achieve near-zero dispersion for the resonant frequencies, yielding a large gain bandwidth and a record-low OPO operating threshold of just 18 femtojoules.

Read more at the link in our bio!

#Research #Physics #Lasers #Optics #Technologynews

## Stats

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- **Likes:** 93
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## Tags

research, lasers, optics, innovation, technologynews, physics

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