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Integrated photonics

Integrated titanium:sapphire laser

The Ti:Sa laser, a workhorse of any optics laboratory, is typically a bench-top system. A hybrid integration approach now enables a low-threshold photonic-circuit-integrated Ti:Sa laser the size of a fingernail.

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Fig. 1: Schematic of the chip-integrated Ti:Sa laser.


  1. Moulton, P. Opt. News 8, 9 (1982).

    Article  Google Scholar 

  2. König, K. J. Microsc. 200, 83–104 (2000).

    Article  Google Scholar 

  3. Hall, J. L. Rev. Mod. Phys. 78, 1279 (2006).

    Article  ADS  Google Scholar 

  4. Liu, Y. et al. Science 376, 1309–1313 (2022).

    Article  ADS  Google Scholar 

  5. Xiang, C. et al. Science 373, 99–103 (2021).

    Article  ADS  Google Scholar 

  6. Corato-Zanarella, M. et al. Nat. Photon. 17, 157–164 (2023).

    Article  ADS  Google Scholar 

  7. Pollnau, M. et al. Laser Phys. Lett. 4, 560 (2007).

    Article  ADS  Google Scholar 

  8. Wang, Y. et al. Nat Photon. (2023).

    Article  Google Scholar 

  9. Boes, A. et al. Science 379, eabj4396 (2023).

    Article  ADS  Google Scholar 

  10. Tao, G. et al. Adv. Opt. Photon. 7, 379–458 (2015).

    Article  Google Scholar 

Download references

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Correspondence to Arnan Mitchell.

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Mitchell, A., Ebendorff-Heidepriem, H. Integrated titanium:sapphire laser. Nat. Photon. 17, 290–291 (2023).

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