Optical switch system

An optical switch system comprising:

• a cross connection group including:
• a plurality of switch modules cascading with one another for use with different channels, each of said switch modules including two input collimators and two output collimators with a moveable two-signal-way switching device therebetween;
• two input fibers respectively connected to the corresponding input collimators of at least one switch modules;
• two output fibers respectively connected to the corresponding output collimators of at least one switch modules;
• and
• jumper fibers each connected between the two corresponding input collimators of two different switch modules, or between two corresponding output collimators of two different switch modules.

An optical switch system comprising:

• a cross connection group and an add/drop group linked to each other;
• said cross connection group including a plurality of first switch modules each including input collimators and output collimators with a moveable switching device therebetween;
• said add/drop group including a plurality of second switch modules each including input collimators and output collimators with a moveable switching device therebetween;
• a plurality of jumper fibers cascading the first switch modules and the second switch modules;
• and
• external add fibers connected to the input collimators of the second switch modules, and input fibers selectively connected to the collimators of one of said first switch modules and said second switch modules.

A method of signal arrangement comprising:

• providing a plurality of switch modules each including input collimators and output collimators with a moveable switching device therebetween;
• providing input fibers connected to the input collimators of at least one of said switch modules;
• providing a plurality of jumper fibers cascading the input collimators of the different switch modules;
• and
• providing a plurality of output fibers connected to the output collimators of at least one of said switch modules;
• wherein
• specific channels of signals from said input fibers are successively selectively switched by said switch modules, respectively.

A method of signal arrangement comprising:

• providing a series of switch modules each including more than one collimators and more than one output collimators with a moveable switching device therebetween;
• inputting more than one input signals entering the corresponding more than one collimators;
• cascading said switch modules;
• and
• demultiplexing said input signals via said input collimators, and simultaneously selectively switching channels dropped by said input collimators;
• multiplexing dropped channels one by one via said output collimators;
• and
• outputting more than one output signals wherein channels of the input signals, which have passed the switching device, are selectively switched with each other while the remaining channels are not.

A method of signal arrangement comprising:

• providing a cross connection group and an add/drop group linked to each other;
• providing said cross connection group with a plurality of first type switch modules each including input collimators and output collimators with a moveable switching device therebetween;
• providing said add/drop group with a plurality of second type switch modules each including input collimators and output collimators with a moveable switching device therebetween;
• providing a plurality of jumper fibers cascading the different switch modules;
• providing input fibers connected to the input collimators of at least one of said first and second switch modules;
• and
• providing a plurality of output fibers connected to the output collimators of at least one of said first and second switch modules;
• wherein
• specific channels of signals from said input fibers are successively selectively switched by said first switch modules, respectively, and/or specific channels of signals from said input fibers are dropped and replaced by the newly added channels from the external add fibers by said second type switching device.