Optical fiber holder, optical device using the same, and method for stowing surplus length of optical fiber

A method of stowing a surplus length of an optical fiber, comprising:

• joining at least two optical fibers pulled out from an optical circuit device;
• holding the joined optical fibers between a pair of first optical fiber guides arranged with one of the first optical fiber guides on either side of the joint of the optical fibers, each of the first optical fiber guides satisfying an allowable bend radius of the optical fibers;
• holding the joint of the optical fibers with a second optical fiber guide that satisfies the allowable bend radius of the optical fiber;
• moving the second optical fiber guide straight toward a first fixing position on the optical circuit device, while holding the joint of the optical fibers with the second optical fiber guide, to secure the second optical fiber guide onto the optical circuit device at the first fixing position;
• and
• moving each of the first optical fiber guides, while holing the joined optical fibers between the first optical fiber guides, around the second optical fiber guide fixed at the first fixing position to take up the optical fibers and secure the first optical fiber guides onto the optical circuit device at a second fixing position.