Patent ID: 6396982
Filing Date: 2002-05-28
Classification: G02B

Abstract:
A bimetal-based temperature stabilized multi-FBG package with tunable mechanism comprising:a moving pin having a first predetermined outer screw pitch at one end and an elongated slot at the other end, a bimetal fixture having a main frame and a plate secured to the main frame, the main frame having a tube member extending outwardly with a second predetermined outer screw pitch thereon; a rotation sleeve having a first predetermined inner thread corresponding to the first predetermined outer screw pitch of the moving pin, and a second predetermined inner thread corresponding to the second predetermined outer screw pitch of the bimetal fixture; and a locking pin disposed at the bimetal fixture for selectable engagement with the slot of the moving pin; wherein the moving pin is disposed between the rotation sleeve and bimetal fixture with one end inserted into the bimetal fixture and the other end is screwed into the first predetermined inner thread, and then the second predetermined inner thread of the rotation sleeve is screwed onto the second predetermined outer screw pitch of the bimetal fixture, whereby when the locking pin is in a position engagement with the slot of the moving pin, the moving pin cannot self-rotate, so rotating the sleeve in one cycle will make the moving pin has a movement of the second predetermined outer screw pitch minus the first predetermined outer screw pitch, and when the locking pin is in a position not engagement with the slot, rotating the rotation sleeve 30 in 360 degrees will result in the second predetermined outer screw pitch movement of the moving pin.