Optical module having temperature adjustment features

An optical module comprising:

• an optical component having a temperature dependent property;
• a temperature adjuster for adjusting the temperature of the optical component;
• a package for including the temperature adjuster and the optical component;
• and
• a heat shield member arranged in at least one portion of a peripheral area of said optical component and reducing heat transmission from said package to said optical component, wherein
• the optical component having the temperature dependent property is optical filter positioned to receive and filter at least a component of the laser beam and the filtered light through the optical filter is received by a light receiving device to monitor a wavelength of the laser beam and
• at least one portion of the heat shield members is arranged in two layer or more.

An optical module comprising:

• an optical component having a temperature dependent property;
• a temperature adjuster for adjusting the temperature of the optical component;
• a package for including the temperature adjuster and the optical component;
• and
• a heat shield member arranged in at least one portion of a peripheral area of said optical component and reducing heat transmission from said package to said optical component, wherein
• the optical component having the temperature dependent property is an optical filter positioned to receive and filter at least a component of the laser beam and the filtered light through the optical filter is received by a light receiving device to monitor a wavelength of the laser beam and
• the heat shield members of at least one layer are formed with a metal.

An optical module comprising:

• an optical component having a temperature dependent property;
• a temperature adjuster for adjusting the temperature of the optical component;
• a package for including the temperature adjuster and the optical component:
• and
• a heat shield member arranged in at least one portion of a peripheral area of said optical component and reducing heat transmission from said package to said optical component, wherein
• the optical component having the temperature dependent property is optical filter positioned to receive and filter at least a component of the laser beam and the filtered light through the optical filter is received by a light receiving device to monitor a wavelength of the laser beam and
• the heat shield member is fixed onto the package so as not to thermally contact with the temperature adjuster.

An optical module comprising:

• a package;
• a temperature adjuster included in the package;
• and
• one or more cooled elements mounted on the temperature adjuster and cooled by the temperature adjuster;
• wherein at least one of the cooled elements is a laser diode;
• and
• a heat shield member is arranged between said package and said cooled element so as not to thermally contact with said package to reduce the heat transmission from said package to said cooled element.

An optical module comprising:

• an optical component having a temperature dependent property;
• a temperature adjuster for adjusting the temperature of the optical component;
• a package for storing the optical component and the temperature adjuster;
• and
• a heat shield member arranged between the package and the optical component;
• wherein the heat shield member thermally contacts with said temperature adjuster wherein
• the heat shield member and the temperature adjuster are fixed by a thermal conducting material.