Patent ID: 7586968
Filing Date: 2009-09-08
Classification: H01S

Abstract:
1. A heater-attached alkali-encapsulated cell comprising first and second heaters for heating an alkali-encapsulated cell in which an alkali metal vapor is encapsulated, the alkali-encapsulated cell having first and second end faces opposed to each other and transmitting pump light for pumping the alkali metal vapor, and laser light outputted from the alkali metal vapor pumped, and a side face connecting the two end faces; wherein a penetrating space extending from one end to another end is formed in each of the first and second heaters; wherein the first heater is so arranged that a portion on the first end face side of the alkali-encapsulated cell is inserted in a part of the penetrating space of the first heater and that the rest thereof extends toward a side opposite to the second end face with respect to the first end face; and wherein the second heater is separated from the first heater with a predetermined distance between the heaters in an opposing direction of the first and second end faces and is so arranged that a portion on the second end face side of the alkali-encapsulated cell is inserted in a part of the penetrating space of the second heater and that the rest thereof extends toward a side opposite to the first end face with respect to the second end face.