Frequency stabilized 633 nm diode laser

Construction of a simple single-frequency diode laser 632.8 nm, used as a frequency standard in the laser interferometers is demonstrated. Two different systems applied for frequency stabilization of diode laser were used . For diode laser used as the secondary standard, the system stabilizes diode temperature, the frequency stability of the laser reaches value 1 part in 10
⁶
. For diode laser used as the primary standard is developed stabilization system using narrow absorption in iodine, the frequency stability of constructed diode laser reaches value 1 part in 10
¹⁰
. The stabilization method can be used for another diode lasers with different wavelength using in fiber communications systems.