# Measurement-efficient optical wavemeters.

Journal Article

We describe a method for efficiently determining the wavelength of a monochromatic source and provide an experimental proof-of-concept. The photomeasurement efficiency for a wavemeter can be written as eta(N,q) = (1 + logqN)/m, where N is the number of spectral channels, q is the number of distinguishable output levels per photodetector, and m is the actual number of photomeasurements made. An implementation is developed that achieves a theoretical efficiency of eta(N,q) = 1. The proof-of-concept experiment achieves efficiencies eta = O(1), where the deviation from theory is attributable to well-known optical effects and should be correctable in future versions.

### Full Text

### Duke Authors

### Cited Authors

- Potuluri, P; Gehm, M; Sullivan, M; Brady, D

### Published Date

- December 13, 2004

### Published In

### Volume / Issue

- 12 / 25

### Start / End Page

- 6219 - 6229

### PubMed ID

- 19488267

### Electronic International Standard Serial Number (EISSN)

- 1094-4087

### Language

- eng

### Conference Location

- United States