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                                                                    EXHIBIT 31.2

                    CERTIFICATION OF CHIEF FINANCIAL OFFICER,
          AS REQUIRED BY SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

      I, Martin P. Gilmore, certify that:

      1. I have reviewed this report on Form 10-Q of LightFirst Inc.;

      2. Based on my knowledge, this report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this report;

      3. Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the registrant as
of, and for, the periods presented in this report;

      4. I am responsible for establishing and maintaining disclosure controls
and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for
the registrant and have:

      a) designed such disclosure controls and procedures, or caused such
      disclosure controls and procedures to be designed under my supervision, to
      ensure that material information relating to the registrant, including its
      consolidated subsidiaries, is made known to me by others within those
      entities, particularly during the period in which this report is being
      prepared;

      b) evaluated the effectiveness of the registrant's disclosure controls and
      procedures and presented in this report my conclusions about the
      effectiveness of the disclosure controls and procedures, as of the end of
      the period covered by this report based on such evaluation; and

      c) disclosed in this report any change in the registrant's internal
      control over financial reporting that occurred during the registrant's
      most recent fiscal quarter (the registrant's fourth fiscal quarter in the
      case of an annual report) that has materially affected, or is reasonably
      likely to materially affect, the registrant's internal control over
      financial reporting; and

      5. I have disclosed, based on my most recent evaluation of internal
control over financial reporting, to the registrant's auditors and the audit
committee of the registrant's board of directors (or persons performing the
equivalent functions):

      a) all significant deficiencies and material weaknesses in the design or
operation of internal control over financial reporting which are reasonably
likely to adversely affect the registrant's ability to record, process,
summarize and report financial information; and

      b) any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrant's internal control over
financial reporting.

                                      Date: November 15, 2004

                                      /s/ Martin P. Gilmore
                                      --------------------------------
                                      Martin P. Gilmore
                                      Chief Financial Officer
                                      (Principal Financial Officer)