Single sideband laser system for atomic devices

A laser system comprising:

• a tunable laser;
• a beam splitter operatively couplable to an output of the tunable laser and configured to split light output from the tunable laser into a first path and a second path;
• a first modulator disposed in the first path, the first modulator being configured to generate a first plurality of sidebands;
• a bandpass filter circuit operatively couplable to receive output from the first modulator and to pass a selected one of the first plurality of sidebands therethrough, the bandpass filter circuit including a fiber Bragg grating filter and a fiber optic circulator operatively coupled to each other;
• a second modulator operatively coupled to receive light output from the bandpass filter circuit and to generate a second plurality of sidebands;
• an optical frequency doubler configured to double frequency of light in the first path;
• and
• a lock circuit disposed in the second path, the lock circuit being configured to determine and stabilize a wavelength of the tunable laser, the lock circuit being further configured to cooperate with the fiber Bragg grating filter to maintain a static lock point for the tunable laser while allowing output of the first path to be tunable with respect to the lock point.

A laser system comprising:

• a tunable laser;
• a beam splitter operatively couplable to an output of the tunable laser and configured to split light output from the tunable laser into a first path and a second path;
• a first modulator disposed in the first path, the first modulator being configured to generate a first plurality of sidebands;
• a first bandpass filter circuit operatively couplable to receive output from the first modulator and to pass a selected one of the first plurality of sidebands therethrough, the first bandpass filter circuit including a first fiber Bragg grating filter;
• a second modulator operatively coupled to receive light output from the first bandpass filter circuit and to generate a second plurality of sidebands;
• a second bandpass filter circuit operatively couplable to receive light modulated by the second modulator and to pass a selected one of the second plurality of sidebands therethrough, the second bandpass filter circuit including a second fiber Bragg grating filter;
• and
• a lock circuit disposed in the second path, the lock circuit being configured to determine and stabilize a wavelength of the tunable laser, the lock circuit being further configured to cooperate with the first fiber Bragg grating filter to maintain a static lock point for the tunable laser while allowing the output of the first path to be tunable with respect to the lock point.