Diffraction-limited 577 nm true-yellow laser by frequency doubling of a tapered diode laser

Mathias Christensen; Mariafernanda Vilera; Danny Noordegraaf; Anders K. Hansen; Thomas Buß; Ole B. Jensen; Peter M. W. Skovgaard

doi:10.1117/12.2287377

15 February 2018 Diffraction-limited 577 nm true-yellow laser by frequency doubling of a tapered diode laser

Mathias Christensen; Mariafernanda Vilera; Danny Noordegraaf; Anders K. Hansen; Thomas Buß; Ole B. Jensen; Peter M. W. Skovgaard

Author Affiliations +

Proceedings Volume 10516, Nonlinear Frequency Generation and Conversion: Materials and Devices XVII; 1051604 (2018) https://doi.org/10.1117/12.2287377
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

A wide range of laser medical treatments are based on coagulation of blood by absorption of the laser radiation. It has, therefore, always been a goal of these treatments to maximize the ratio of absorption in the blood to that in the surrounding tissue. For this purpose lasers at 577 nm are ideal since this wavelength is at the peak of the absorption in oxygenated hemoglobin. Furthermore, 577 nm has a lower absorption in melanin when compared to green wavelengths (515 − 532 nm), giving it an advantage when treating at greater penetration depth. Here we present a laser system based on frequency doubling of an 1154 nm Distributed Bragg Reflector (DBR) tapered diode laser, emitting 1.1 W of single frequency and diffraction limited yellow light at 577 nm, corresponding to a conversion efficiency of 30.5%. The frequency doubling is performed in a single pass configuration using a cascade of two bulk non-linear crystals. The system is power stabilized over 10 hours with a standard deviation of 0.13% and the relative intensity noise is measured to be 0.064 % rms.

Citation Download Citation

Mathias Christensen, Mariafernanda Vilera, Danny Noordegraaf, Anders K. Hansen, Thomas Buß, Ole B. Jensen, Peter M. W. Skovgaard, "Diffraction-limited 577 nm true-yellow laser by frequency doubling of a tapered diode laser", Proc. SPIE 10516, Nonlinear Frequency Generation and Conversion: Materials and Devices XVII, 1051604 (15 February 2018); doi: 10.1117/12.2287377; https://doi.org/10.1117/12.2287377

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years