There is provided a laser chamber housing a pair of discharge electrodes and a gas circulation fun, the laser chamber including: a magnetic bearing configured to support a shaft of the gas circulation fan, with the shaft being in non-contact with the magnetic bearing; and a touchdown bearing configured to operate as a bearing when the magnetic bearing is uncontrollable, the touchdown bearing being provided with solid lubricant configured of one or more of an Au plating layer, a Ni-containing plating layer, and a Cu plating layer.