Patent ID: 6996322

Claim:
A dispersion compensation module for optical communication comprising: a take-apart cassette having (i) a first part with a first and a second shaped structure of selected height and thickness therein, said first shaped structure being located within said second shaped structure, and (ii) a second part, said second part being a lid for said first part; (iii) a coil of optical fiber having a first end and a second end, said coil being between said first and second shaped structures; and said first and second end of said coil being connected to a first and a second pigtail, respectively; said pigtails being located at the outer perimeter of said cassette for connecting said coil of optical fiber within said cassette to an optical communication system; wherein said second shaped structure has at least two openings there through for passage of the first and second ends of said fiber coil to said first and second pigtails, respectively; and wherein said module has a first layer of resilient material of selected thickness located between said shaped structures and said lid, said resilient material being continuous and covering at least the inner diameter of the second shaped structure.