The fusion splicing method from fusion splicer manufacturer
The fusion splicing method from fusion splicer manufacturer
A fusion splicer and fusion splicing method from fusion splicer manufacturer is disclosed including a TV camera 32 which obtains transmitted light images passing through side areas of respective optical fibers 10, 20, an image processing unit 33 which calculates mode field diameters of the respective optical fibers from brightness distributions of the images in terms of directions traverse to the optical fibers to calculate a diametric difference between the mode field diameters, a movable base 57 to move abutted portions between the optical fibers relative to an electric discharge beam position, a drive unit 35 which implements additional electric discharge heating after applying electric discharge fusion splicing heating to the abutted portions while moving the electric discharge beam position toward one of the optical fibers, of which mode field diameter is regarded to be small, and a control unit 34 which controls an electric discharge power supply 36.
The present otdr relates to an optical fiber fusion splicer and an optical fiber fusion splicing method for fusion splicing two optical fibers of different mode field diameters using an electric arc discharge.
When structuring communication cable networks or manufacturing equipments using optical fibers, there are often instances where two optical fibers of mutually different mode field diameters are fusion spliced. In such a case, if an attempt is made to merely use an arc discharge fusion splicer to fusion splice these two optical fibers.
To address such an issue, in the state-of-the-art practice, various attempts have been made to connect two optical fibers of different mode field diameters to maintain the connection loss as low as possible. For instance, in an approach proposed in Japanese Patent Provisional Publication No. 2000-098171, when fusion splicing an optical fiber of a smaller mode field diameter on one hand and an optical fiber of a larger mode field diameter on the other hand, terminal ends of both the optical fibers are abutted to one another with abutted portions being fusion spliced using electric discharge heating.
Thus, by enlarging the mode field diameter of the relevant optical fiber of the smaller mode field diameter in a tapered shape, a substantial matching of mode field diameters of both the fusion splicer manufacturer at joint portions can be made, resulting in reduction of a connection loss. Also, the presence of an elongated tapered length enables connection of both the optical fibers with a limited increase in the connection loss that would be otherwise caused by a shortened tapered length, with a resultant further reduction in the connection loss.
A fusion splicer and fusion splicing method from fusion splicer manufacturer is disclosed including a TV camera 32 which obtains transmitted light images passing through side areas of respective optical fibers 10, 20, an image processing unit 33 which calculates mode field diameters of the respective optical fibers from brightness distributions of the images in terms of directions traverse to the optical fibers to calculate a diametric difference between the mode field diameters, a movable base 57 to move abutted portions between the optical fibers relative to an electric discharge beam position, a drive unit 35 which implements additional electric discharge heating after applying electric discharge fusion splicing heating to the abutted portions while moving the electric discharge beam position toward one of the optical fibers, of which mode field diameter is regarded to be small, and a control unit 34 which controls an electric discharge power supply 36.
The present otdr relates to an optical fiber fusion splicer and an optical fiber fusion splicing method for fusion splicing two optical fibers of different mode field diameters using an electric arc discharge.
When structuring communication cable networks or manufacturing equipments using optical fibers, there are often instances where two optical fibers of mutually different mode field diameters are fusion spliced. In such a case, if an attempt is made to merely use an arc discharge fusion splicer to fusion splice these two optical fibers.
To address such an issue, in the state-of-the-art practice, various attempts have been made to connect two optical fibers of different mode field diameters to maintain the connection loss as low as possible. For instance, in an approach proposed in Japanese Patent Provisional Publication No. 2000-098171, when fusion splicing an optical fiber of a smaller mode field diameter on one hand and an optical fiber of a larger mode field diameter on the other hand, terminal ends of both the optical fibers are abutted to one another with abutted portions being fusion spliced using electric discharge heating.
Thus, by enlarging the mode field diameter of the relevant optical fiber of the smaller mode field diameter in a tapered shape, a substantial matching of mode field diameters of both the fusion splicer manufacturer at joint portions can be made, resulting in reduction of a connection loss. Also, the presence of an elongated tapered length enables connection of both the optical fibers with a limited increase in the connection loss that would be otherwise caused by a shortened tapered length, with a resultant further reduction in the connection loss.