title: Stabilization of single frequency internal mirror He-Ne lasers: comment.
abstract: In the cited article the frequency stability of a singlemode He-Ne laser is concluded from the stability of the laser intensity. We point out that this derivation of frequency stability may show remarkable systematic errors.
authors.forename: W
authors.initials: W
authors.lastname: Holzapfel
authors.forename: W
authors.initials: W
authors.lastname: Luxem
authors.forename: W
authors.initials: W
authors.lastname: Settgast