Fiber optic connectors and interfaces

A fiber optic interface, comprising:

• an optical loss test set and a test cable, the optical loss test set comprising:
• an optical power meter;
• and
• a test port optically connected to the optical power meter, the test port comprising a first fiber optic connector, the first fiber optic connector comprising:
• a ferrule extending from a distal end to a proximal end along a longitudinal direction, the ferrule comprising a contact interface defined at the proximal end of the ferrule;
• a first optical fiber extending within the ferrule along the longitudinal direction and terminating at a first fiber end, the first fiber end spaced apart from the contact interface towards the distal end of the ferrule along the longitudinal direction by a first distance, wherein the first distance is at least five microns;
• and
• a third optical fiber extending within the ferrule along the longitudinal direction and terminating at a third fiber end, the third fiber end spaced apart from the contact surface towards the distal end of the ferrule along the longitudinal direction by a second distance, wherein the second distance is at least five microns and is not equal to the first distance:
• wherein the test cable comprises a second fiber optic connector configured to mate with the first fiber optic connector, the second fiber optic connector comprising a second optical fiber configured for optical communication with the first optical fiber when the second fiber optic connector is mated with the first fiber optic connector, the second optical fiber extending within the second fiber optic connector and terminating at a second fiber end;
• wherein the ferrule of the first fiber optic connector comprises an end face which faces the second fiber optic connector when the second fiber optic connector is mated with the first fiber optic connector and wherein the end face of the ferrule of the first fiber optic connector consists of a single face.

A fiber optic interface, comprising:

• an optical loss test set and a test cable, the optical loss test set comprising:
• an optical power meter;
• and
• a test port optically connected to the optical power meter, the test port comprising a first fiber optic connector, the first fiber optic connector comprising:
• a ferrule extending from a distal end to a proximal end along a longitudinal direction, the ferrule comprising a contact interface defined at the proximal end of the ferrule;
• a first optical fiber extending within the ferrule along the longitudinal direction and terminating at a first fiber end, the first fiber end spaced apart from the contact interface towards the distal end of the ferrule along the longitudinal direction by a distance, wherein the distance is at least twenty microns;
• wherein the test cable comprises a second fiber optic connector configured to mate with the first fiber optic connector, the second fiber optic connector comprising a second optical fiber configured for optical communication with the first optical fiber when the second fiber optic connector is mated with the first fiber optic connector, the second optical fiber extending within the second fiber optic connector and terminating at a second fiber end;
• wherein the ferrule of the first fiber optic connector comprises an end face which faces the second fiber optic connector when the second fiber optic connector is mated with the first fiber optic connector and wherein the end face of the ferrule of the first fiber optic connector consists of a single face, and
• wherein the first optical fiber and the second optical fiber are aligned along a vertical direction perpendicular to the longitudinal direction.

A fiber optic interface for optical testing, comprising:

• a first fiber optic connector, comprising:
• a ferrule extending from a distal end to a proximal end along a longitudinal direction, the ferrule comprising a contact interface defined at the proximal end of the ferrule;
• and
• a first optical fiber extending within the ferrule along the longitudinal direction and terminating at a first fiber end, the first fiber end spaced apart from the contact interface towards the distal end of the ferrule along the longitudinal direction by a first distance, wherein the distance is at least five microns;
• a third optical fiber extending within the ferrule along the longitudinal direction and terminating at a third fiber end, the third fiber end spaced apart from the contact surface towards the distal end of the ferrule along the longitudinal direction by a second distance, wherein the second distance is at least five microns and is not equal to the first distance;
• and
• a second fiber optic connector configured to mate with the first fiber optic connector, the second fiber optic connector comprising a second optical fiber configured for optical communication with the first optical fiber when the second fiber optic connector is mated with the first fiber optic connector, the second optical fiber extending within the second fiber optic connector and terminating at a second fiber end;
• wherein the ferrule of the first fiber optic connector comprises an end face which faces the second fiber optic connector when the second fiber optic connector is mated with the first fiber optic connector and wherein the end face of the ferrule of the first fiber optic connector consists of a single face.