Verizon Communications has installed gigabit passive optical networking technology in about 40 of its 600 central offices, and likely will be increasing its GPON footprint throughout this year as central office currently supported by broadband PON get converted to GPON as bandwidth demand dictates. It is not clear how many actual FiOS customers are now served by GPON. The update, published in Light Reading, comes not long after vendor Tellabs said it was discontinuing its GPON activities at Verizon. Beyond GPON, Verizon is eyeing the possible evolution to WDM-PON, though that could be at least two years away, and Verizon official say the technology and its advantages need to mature further before a commitment is made. Check out this report at Light Reading